Ichigo Hoshimiya is a bright young girl who is always helping her mother out at a takeaway bento place. After accidentally messing up her brother Raichi's photos of top idol Mizuki Kanzaki, Ichigo goes to her best friend Aoi Kiriya, who manages to get them some tickets to Mizuki's concert. The three of them go to Mizuki's concert, which leaves a strong impression on Ichigo.

Ichigo and Aoi begin their first day at Starlight Academy, taking in the sights before moving into their dorm. They then meet up with the headmistress, Orihime Mitsuishi, who gives them the Aikatsu cards they selected in the audition, as well as an Aikatsu Phone used to store their cards.

As Aoi begins her job as Mizuki's temporary manager alongside her usual manager, Honoka Tsukikage, Ichigo decides to pursue them in secret. She is soon caught stowing away, but Mizuki lets her tag along regardless.

After Ichigo and Aoi's audition is uploaded to the academy's website, Aoi gets her first fan letter. As Ichigo applies for another audition with Aoi for a job at a takoyaki store, she begins training to avoid tripping over like last time.

Ichigo becomes curious about her classmate, Ran Shibuki, who appears to be something of a loner.

As Ichigo and Ran head to their fashion shoot, Ichigo realises she doesn't have an autograph signature. Hearing about this, Johnny tasks Ichigo and Aoi to come up with a signature by the next day. Ran agrees to help them figure out an autograph to use, spending all night helping them out.

Ichigo and Aoi end up signing up for different auditions on the same day, receiving support from fans from the KiraKiratter social network.

As Ichigo gets lost while shooting a vlog, she discovers an underground studio where another idol is in training.

As Ichigo, Aoi and Ran train for their special audition, they ask Johnny for help on obtaining special Premium Cards needed for their audition.

On their way to school, the girl's meet the peculiar Otome Arisugawa, who fell into the school fountain trying to catch a rainbow. Meanwhile, a tournament is held for one of three places in a special Christmas event, with Ichigo to face Otome in the first round.

As Otome falls out of a tree trying to rescue a cat, she is rescued by the janitor. As Otome seems a little spaced out afterwards, Ichigo and the others assume she has a crush on the janitor, leading Aoi to reminisce about a boy she previously admired.

As Ichigo ends up volunteering everyone to help out for a Christmas party on the day of the special event, she notices the normally energetic Yuna Nakayama is feeling down due to her parents working around Christmas.

As the New Year rolls in, Orihime informs Mizuki of her planned partnership with Ichigo for a special stage event. Meanwhile, Ichigo ends up eating too much over the New Year's break and gains weight by the time school starts up again.

As the girls anticipate their audition for a drama called Naughty Detectives, they also find themselves against fellow schoolmate Shion Kamiya. As the girls are informed of two roles to audition for, Shion cuts her hair short to try for a boyish detective role. As Aoi starts to become nervous, Orihime gives her and Ichigo some words of advice.

As Ichigo and the others prepare for a team audition, they decide that Otome needs to obtain some premium cards. After Johnny warns them that the designer for Otome's favourite brand, Happy Rainbow, is a very strict person, the girls work on their team training.

Ichigo nervously attends her first meeting with Mizuki's staff as they plan for her next concert. After the meeting, Mizuki starts training Ichigo on a trampoline, teaching her about the Special Appeals she'll need to use. As Ichigo struggles to think about how to pull it off, her friends give her some advice.

As the day of the concert arrives, Ichigo's mother, Ringo, has a feeling of nostalgia as she takes Raichi to the theater. Meanwhile, Ichigo is nervous as she hasn't been able to do three Special Appeals during her rehearsal, but Aoi, Ran and Otome show up to give her their support.

As Ichigo, Aoi, Ran and Otome are asked to perform for a Valentine's Day Fashion Show, the girls decide to make some handmade chocolate for the event before spending the night picking out their choice of clothes.

While running home late from a job, Ichigo encounters a supposed vampire, who runs off when she sees a pin Otome gave her. This vampire is revealed to be Otome's classmate, Yurika Tōdō, who constantly acts in character in preparation for a Loli-Goth themed audition for a rock festival, which Ichigo also intends to participate in.

An article appears in the tabloids features photos that expose Yurika's normal appearance that she keeps secret from the public.

Ichigo, Ran, Otome and Yurika are given the chance to audition for a movie remake of Stylish Thief ☆ Swallowtail, a show which previously starred Masquerade, the idol pair Orihime was a part of. As the gang train for the audition, Yurika chooses not to in order to keep with her vampire character.

The gang decide to go undercover so they can watch Ichigo and Otome's movie in a normal movie theater.

As Ran trains for the representative audition for Spicy Ageha, Ichigo applies her to appear in a fashion show for the senior students' graduation ceremony. R

After finishing up their auditions for a while, Ichigo, Aoi and Ran decide to go to some hot springs for their time off. Along the way, they encounter some fans, have conversations on the train and stop by a field of flowers to enjoy a picnic.

Ichigo's father, Taichi, arrives home on April Fools' Day, bringing with him some star grapes that he acquired during his travels.

One year after Ichigo left for America, a new rival idol school, Dream Academy, has been formed, raising its own idols. Meanwhile, at Starlight Academy, where Otome is the current Starlight Queen, Aoi and the others meet a peculiar girl, though can't identify her amongst the listed idols.

After Ichigo rekindles with everyone, Seira decides to test if she can pull off a Constellation Appeal, with Aoi letting her take her place in the concert. Ichigo manages to pull off a Constellation Appeal, which results in the contest ending in a draw.

After failing to find some concrete details on what Ichigo got up to during her year in America, Kii sends Seira over to Ichigo's house to ask her in person.

As the idols have some new promotional photos taken, Ichigo, Aoi, and Ran, along with Seira, are asked to help promote a new camera model by letting fans take pictures of them. After running into each other while practising their candid expressions, Ichigo, Aoi, Ran, Seira, and Kii go shopping together to explore the range of expressions they can make, before stopping by Seira's café.

With an audition for the next Pon Pon Crepe image girl to replace Aoi coming up, Seira suggests Kii give it a go, but she states it wouldn't suit her since she's a producer.

The presence of a reporter known as Mister S, who is infamous for exposing idol love affairs, puts the other idols on high alert. Meanwhile, Aoi and Kii are asked to participate in a fashion show themed around 'first love'. Feeling that Mister S may be targeting Seira, Kii has her take asylum in Starlight Academy, as she feels her secret hobby of cutely talking to cats clashes with her rock idol image.

As the subject of mascot phone charms is brought up, Ichigo notices Ran seems to have her own mascot charm. Meanwhile, Ran is given a Constellation Premium Dress by Spicy Ageha's top designer and is tasked with performing a Constellation Appeal at her next fashion show.

Seira and Kii are due to do a performance together, with Kii suggesting they do their own choreography. Wanting to learn about choreography, the two seek out Johnny, who decides to give them, along with Ichigo and co, a lesson on how to compose choreography.

Aoi is approached about creating a TV drama to promote some new chocolates. After deciding to make the drama about a chocolate-eating detective, Aoi asks Ichigo and the others to audition alongside her, with Seira and Kii also brought in to audition.

After Otome, Sakura and Shion pay a visit to Seira's café, Ichigo, Seira, and Kii tail them to get a glimpse of Powa Powa Puririn's activities, which happen to include line-balancing, leaf sweeping and games of tag. It is then shown they are filmed in secret for their television show in order to capture their appeal.

Sora Kazesawa, a Dream Academy student studying in both idol and designer courses, is approached by Tiara to start her own Aikatsu brand. However, Sora feels a bit nervous about the responsibility of running a brand, as she's always been free in the way she's designed her clothes.

Dream Academy decides to hold a Christmas party with Kii as producer and Sora at the designer, while Ichigo features on a Christmas cake designed by Asuka.

As idols from both Starlight Academy and Dream Academy gather to participate in the Red and White Aikatsu Battle, Mister S is spotted, hoping to find the person responsible for Dream Academy's rise to fame somewhere among them. After interviews, Ichigo, Aoi, and Ran go to greet the event's super special guest, enka singer Sabuko Nishijima, helping to carry her giant 'Enkatsu card' that she had brought to the event.

At the start of the new year, Starlight Academy and Dream Academy are poised to compete in a Lucky Idol Race, with a custom-made Constellation Dress up for grabs for the winner. All the idols make preparation for the race while Raichi is busy preparing his Aikatsu Newspaper.

Ichigo and the others are informed of a Starlight Idol Festival occurring in March, with Ichigo as the headlining act. However, on the day Orihime announces the festival, it is also revealed that Dream Academy is holding its own Dream Academy Carnival on the same dates. Feeling that it is too much of a coincidence, Ichigo, Aoi, and Ran follow Nao, the only other person who heard about the festival in advance, and learn that he is in fact Tiara's younger brother.

After producing a successful makeup commercial for Seira, Kii is lined up to audition for the poster girl of her favorite beverage, Brain Thunder. Wanting Kii to audition, Seira tries to take her to search for Magical Toy's top designer while he is in town, but finds it hard to drag her away from producing her next commercial.

It's almost Setsubun and Starlight School is busy in preparation of the event. But when Ran decides to enter she tries to choose between being her self or offering something that will please others- even if she doesn't like it.

Dream Academy idol Maria Himesato, who is due to appear on an 'Idol Princesses' television program where she will receive a Constellation Dress from Green Grass, decides she wants daisies incorporated into the design to remind her of the mountains.

Given the chance to appear in a special episode of Idol Princesses, Maria decides to invite her friends from both Dream Academy and Starlight Academy to a house party at her mansion.

Seira, Kii, Sora, and Maria are invited to audition for a four-girl drama series. Unable to decide on which roles to audition for, they let Kii's computer choose for them, with Kii ending up as the leader character. The girls ask Ichigo, Aoi, and Ran for advice on drama auditions, learning how to utilise their skills to fit their assigned roles and make them their own.

Aoi is requested to appear in a concert promoting a Futuring Girl Constellation Dress, in which she is expected to perform a Constellation Appeal. As Aoi wonders how she can pull off a Constellation Appeal, Tiara tells her that she is much like water, though doesn't get an opportunity to explain why, leaving Aoi with more questions than answers. Noticing her unease, the other idols each do their part to give Aoi some encouragement.

The day before the Star Dream Festival & Carnival begins, Dream Academy is busy with preparations for the Dream Carnival day. Seira, who has been nervous about being the headlining act, learns from Ichigo that she plans to perform alongside her friends.

Otome explains that she was so focused on including everyone into her schedule that she forgot to include herself, refusing to make any further changes to the timetable.

With graduation approaching for the third year students, Ichigo, Aoi, and Ran are put in charge of the graduation album committee, collecting a large amount of pictures and reminiscing about the memories they possess, particularly from the year Ichigo was away.

With spring break arriving again, Ichigo, Aoi, and Ran once again attempt to go to the hot springs they missed last time, stopping by the rape blossom field again along the way when they discover a bus stop has been built next to it.

During a rainfall, the roof in Akari's dorm room starts leaking, resulting in Akari and her roommate, Yuu, having to move into separate dorms, with Akari moving in with Sumire Hikami, who she met by coincidence that morning.

On the day before her job with Ichigo, Sumire gets a less than favorable horoscope, but finds a way to twist it into something positive. Later, Akari helps Sumire read up on Ichigo, with Ichigo herself giving her a bag of things to look over.

Akari meets Hinaki Shinjyo, a child actor from Sumire's class, who has been interested in her ever since her entrance audition where she inadvertently introduced herself as Ichigo.

As part of her role as the Pon Pon Crepe Girl, Akari needs to come up with a pose for a promotional poster. With help from Hinaki, Akari manages to come up with a variety of poses, but also notices Hinaki seems to be downhearted about something.

With Halloween approaching, Johnny tasks students with collecting as much candy as possible in order to star in the annual Nightmare Party.

Akari is informed about her first solo concert, which will take place in a shopping mall. Feeling that this could be a decisive moment for her, Akari decides to try and obtain a Premium Dress from Dream Crown's designer, Tsubasa Sena, who is wrapped in mystery.

Wanting to get a Premium Dress herself, Sumire and the others visit Yurika for advice on how to appeal to Loli Gothic's top designer Maya.

As an audition is held for the starring role in a new drama alongside Ichigo, Aoi, and Ran, a new transfer student, Juri Kurebayashi, expresses her passionate desire to win the role.

Juri feels downhearted as she isn't satisfied with her own performance for an upcoming episode. Karen explains to her that when she was in an acting rut, it was a premium dress from her favorite brand, Sangria Rosa, the helped her overcome it.

Raichi and Noelle's classmate, Asahi Azuma, who is a big fan of Akari, learns that she'll be appearing in her first handshake event alongside Sumire.

After Ichigo announces her own Great Starmiya Ichigo Festival, which is being produced by Aoi and Ran, Akari decides she wants to help with the preparations.

With a week until Christmas, Sakura is put in charge of preparations for the Christmas Party, which includes a special Aikatsu Christmas Stage. Aiming to audition for the stage alongside Akari and Sumire, Hinaki decides she needs to get a Vivid Kiss Premium Dress so she can perform a Heroine Appeal.

After Hinaki receives her Premium Dress from Kayoko, the girls focus on the preparations for the Christmas Party. Both Akari and Juri reminisce about three years ago, when Ichigo and her friends cut down a large Christmas tree to cheer up their fellow student, with Akari taking up the challenge of cutting down another tree in the same way.

With her family on vacation, Juri joins Akari and her family in celebrating the new year, where Akari becomes a little embarrassed by her parents' obsession with soil.

With the start of the new semester, Akari makes a new year's resolution to find something she is good at. To this end, Akari decides to audition to become a weather girl, with Sumire and the others helping her to train.

As Akari begins her job as a weather girl, Sumire decides she needs to find her own speciality too. However, she gets a throat cold just as she receives word of a shampoo girl audition, which seems to favor her beauty rather than her singing talent.

Yuu goes off on a month-long exchange program with Himezakura Girls Academy in Kyoto, who send one of their own students, Miyabi Fujiwara, to Starlight Academy in her place.

Miyabi meets a fan of hers named Tomoyo who feels downhearted because of her boyish looks, feeling she can't be 'cute' like she considers Miyabi to be.

With literally truckloads of chocolate arriving from fans for Valentine's Day, Orihime announces a "Thanks, Valentine" event to show not one piece goes unappreciated, with cafeteria chef Shun Yotsuba put in charge as head patissier.

With only three days remaining before Miyabi must return to Kyoto, Akari and the others make plans for a proper send-off. Meanwhile, as Miyabi is offered a stage for her final day, she decides she wants to compete against Sakura in order to challenge herself.

The girls get together to watch a mystery movie that they all starred in together. When Sumire Gelato is abducted by the vampire Yurika, vampire hunter Jurius Caesar Salada is sent to Starlight Academy to investigate.

As Tsubasa struggles to come up with a design for his next Premium Dress, Akari's popularity as a weather presenter earns her a stage during a concert being planned by her TV channel, feeling she needs to up her game to earn the right to wear the Premium Dress.

The Starlight Queen Cup is moved up to Spring, with the entire middle school section eligible to participate. As the girls are asked by Otome to help her move out of her current dorm, which is reserved for the next Starlight Queen, Sakura, who had previously lost against Otome, keep her distance, feeling she doesn't yet have the right to enter the dorm just yet.

Soleil announce they will be launching a half-year long nationwide tour in the spring, setting up a project room at Starlight Academy to plan the tour.

With Akari, Sumire, and Hinaki on their long-awaited off-time, Akari suggests they go on a camping trip at the Dreamy Lake near Tsubasa's headquarters.

When the three members of Luminas began their Luminas☆Japan Tour, their very first location was the Land of the North, Hokkaido. In this land filled with the presence of nature, an encounter was made with the Sing and Dance Lovers, Nono Daichi and Lisa Shirakaba. When their encounter begins, right here, right now opens the curtains of the beginning of the two idols' Aikatsu!

After meeting Luminas, the pounding hearts of Nono Daichi and Lisa Shirakaba are unstoppable. This came from the strong feeling of admiration towards them as an idol. And so, in order to express this feeling of theirs, the two have decided to participate in the Entrance Audition for Starlight School...!

The now hottest Jewelry brand "Thrilling Carat" is holding a CM (commercial) audition, and Akari Ōzora, Sumire Hikami and Hinaki Shinjō have been invited to participate in the audition. The three did a lot of research about Jewelry despite their busy schedule in order to pass the audition, and enjoyed it very much. Inspired by the trio, Nono Daichi and Lisa Shirakaba decides to join in on researching...!

Akari Ōzora's previous roommate, Yū Hattori has gained popularity through being a "Travelling Idol"! Now, Yū and Akari's unit Luminas are heading for Kyoto at the same time. The TV program in Kyoto that Yū was planning to attend turns out to have also invited Luminas. The reason behind the brilliance of Yū right now is thanks to a promise made between her and Akari.

Nono Daichi and Lisa Shirakaba have received offers to perform during the fashion event that has been gathering everyone's attention: "Urban Girls Collection"! The two who are overjoyed by the news have decided to obtain the Premium Rare Coord from their favourite brand, Dolly Devil. To meet with the top designer Lucy Kisaragi, it was a pay out to meet in the big city!

The three members of Luminas are headed for their next destination for their Nationwide Tour: Okinawa! In Okinawa, they met Minami Hateruma who attends Churaumi Beat Academy. Coincidentally, Minami is a friend of Rin Kurosawa, and strongly desires to reunite once again. The land of Starlight which is far far away from Okinawa, can Minami and Rin dance together again...!?

An All Star Idol special drama named Idol Universe War "Ozoracon" will be taking place at Starlight School. Right now, on the stage of the Idol Academy in the Universe, Galaxy☆Starlight, the fierce story of the splendid idols begins now ――!

From the shadows, the young girl Tsubaki Saionji has always watched Akari Ōzora, whom she is envious of. Tsubaki proclaims herself as the "Perfect Lady" among the students in Starlight School. In order the have the Premium Dress of Dreamy Crown made, it is necessary to meet with the top designer, Tsubasa Sena, but...!

The next location of the "Luminas☆Japan Tour" will be held in Osaka! At the location, the unit Akari Ōzora is in, Luminas will be coming across Nina Dōjima, who attends Naniwa World's No. 1 Academy, the Comedy School Osaka is so proud of. Nina whose head features bear ears that acts as her trademark is a cute and intense character...!

The three idols from Luminas who are now in Osaka will be participating in a local program alongside the idol of comedy, Nina Dōjima. The theme of the program is "Going around various places, deliver laughters to people from kids to adults". While looking for a location and being seen at the same time, the real form of Nina's theory of comedy is...!

The idols of Starlight School where Akari Ōzora and her friends are at has received an offer for the CM of "Happiness Toys", a newly standing toy brand that was sponsored by a major toy manufacturer! Not only an offer was received, the key to the success of the brand is to grasp "the very first product"'s planning stages and to cooperate with it...!

Entering the month of December, the New Year Program that the TV Station is recording is in a mess. Akari Ōzora and her fellow Starlight Idols who are participating in the recording will beautifully finish the recording while being busy with their own personal jobs and will do their best to enjoy each and every one of them. Among those idols, Nono Daichi and Lisa Shirakaba are getting excited and bursting with thoughts about their own Aikatsu's.

Finally, Luminas☆Japan Tour is coming to an end. The day of the final stage will be on the night of christmas eve, while the location venue will be held in Starlight School. The three members of Luminas who are awaiting for the white christmas will be starting an event that shall deliver snow from all over Japan to Starlight named "Snow Relay"...?

A new year has begun, and Headmistress Orihime has announced the beginning of the next Starlight Queen Cup. Everyone has began to make their entries, but Sumire has yet to make a decision on "what kind of queen would she like to be". While Akari and Hinaki are beginning to feel impatient as they already have a clear thought, what will be the answer that deprives from Sumire...?

Akari Ōzora who is thinking hard everyday on what kind of stage she will have to create in order to please the audience decides to consult Tsubasa Sena, who has once said that designers and idols are a team. However, Tsubasa has caught a cold...?

Nono Daichi and Lisa Shirakaba who has received a boost from seeing Akari and her friends work hard training everyday for the Starlight Queen Cup, has also decided to work hard towards their goal of participating in the Starlight Queen Cup. But at the same time, Nono who would like to participate with Lisa as a PR (public relations) in a potato convention in Hokkaido named "May Queen Cup" (May Queen is a variety of potato), finds Lisa making a gloomy face...

In order to get even closer to becoming the Starlight Queen, Hinaki Shinjō has requested for a new Premium Rare Dress from her favourite brand Vivid Kiss to be made. The ideas collected some time ago in order to create an extraordinary dress turns out to be the live venue of a certain idol!

There is a month left until the beginning of the Starlight Queen Cup. While Sumire Hikami and Hinaki Shinjō has completed their preparations of unveiling their new Premium Rare Dresses for the stages, Akari Ōzora's dress has yet to be completed. On the other hand, the designer Tsubasa Sena who is aiming to produce the best dress continues creating his masterpiece. After seeing Tsubasa's actions, Akari who has begin to think about becoming a power to help someone...

Madoka books a concert house so she can perform with Rin again, since they haven't had much time to practise together. As everyone gets excited for the performance, Rin takes Madoka out to a café to celebrate her birthday.

Akari and the others go to Dream Academy to attend its annual DreaCarnival, where they catch up with Seira and the other Dream Academy idols. Along the way, they discover that Noelle has enrolled as a middle-school student, hoping to become an idol like her sister.

With word spreading about a top secret guest set to headline the Starlight Queen Cup, everyone becomes curious as to who it will be, including Johnny. While visiting Ichigo's bento shop, Johnny comes to the assumption that Masquerade is the special guest in question. His guess turns out to be completely off the mark, however, as the real guests are revealed to be Mizuki and Mikuru, who have reformed WM.

Risa decides she wants to perform Mizuki's signature song, "Move on now!", for the Starlight Queen Cup, as it was the first song she sung on her own. However, she becomes nervous when she learns Mizuki herself will be providing live commentary. While doing a drama shoot with Juri, Risa hears from her about how she gained the confidence to become her own idol. The first day of the Starlight Queen Cup soon gets underway, with Juri managing to obtain an Appeal Ranking of A to place at the top spot. Risa finishes the day's events with her performance, placing just behind Juri, before receiving some personal thanks from Mizuki.

While the other idols prepare for the next day of the Starlight Festival, Nono makes Risa a meal to cheer her up, promising to win in her stead. The next day, as Miyabi and Kokone come to Starlight to watch the event, Nono kicks the day off with her performance, also falling just behind Juri in the rankings. Rin lands in the spot after Nono, while Madoka places between Juri and Nono. With Juri still in the top spot, Akari, Sumire, and Hinaki prepare for the next day's performances.

Rin and Madoka decide to respectively help Sumire and Akari train for their performance, while Hinaki speaks with Juri before receiving some flowers from Mikuru. As the final day of the Starlight Queen Cup begins, Hinaki is the first to perform, managing to overtake Juri in the rankings. During her performance, Sumire attempts a Special A-Rank Fever Appeal but fails to land it successfully.

Receiving encouragement from Sumire, who still places in the top eight in spite of her failed Fever Appeal, Akari steps up for the final performance. Not only does Akari manage to beat Hinaki and win the title of Starlight Queen, but she also earns the Special A-Rank for her Fever Appeal. During the awards ceremony, Akari is crowned by Ichigo and thanks everyone for helping her get so far. Afterwards, Akari moves into the Starlight Manor, where she finds Sumire and Hinaki waiting to join her in celebration.