It's a night of partying for Jae Yeol. His midnight kiss is interrupted by an unexpected guest. Hae Soo is summoned into a talk show on short notice.

Jae Yeol returns Hae Soo a favor, even after she hurts him to save another patient. She injures her arm, but that doesn't stop her from doing her job.

Jae Yeol speaks to his brother Jae Beom. He also decides to kick out Hae Soo from his building. Maybe a kiss is enough to pay the price.

A night in Jae Yeol's flat leads to a closer relationship with Hae Soo. Jae Yeol could possibly be Hae Soo's therapist after a desensitizing kiss.

Jae Yeol texts Hae Soo that she made his heart flutter, but it only lasted for a moment. Hae Soo takes it differently, and their ship sails on.

After finding out Jae Yeol's relationship with the bathroom, Hae Soo discovers more about him. Dong Min decides whether he should reveal his truth.

Hae Soo sees a different side of Jae Yeol right before they leave for a trip. After knowing what his bathroom looks like, she's left stunned.

Jae Yeol and Hae Soo go on a faraway trip together, but meet up with Jae Yeol's mother first. They get along, but hurdles soon come their way.

A kiss on the beach under the light of a crescent moon is followed by a nightmare of Gang Woo's accident. Hae Soo comforts Jae Yeol, but not for long.

Jae Yeol is moving out, and Hae Soo is not sure why. She's disappointed, but she can't show it to him just yet.

Hae Soo thinks she's a woman Jae Yeol isn't going to marry and would probably dump. Jae Yeol says she's right, but that's not exactly what he feels.

CCTV footage shows that Gang Woo doesn't exist. It's now up to Dong Min to break the news to Jae Yeol. Hae Soo doesn't answer his proposal.

Hae Soo finds out about Gang Woo and Jae Yeol's psychological problems. As she does her best to be there for him, Gang Woo slowly dies.

Jae Yeol receives a call from Gang Woo after a night with Hae Soo. Hearts are broken as this could be the last of Gang Woo with Hae Soo left helpless.

Hae Soo can't do anything for the one she finally sees as true love, while Jae Yeol is locked up for schizophrenia.

The couple's ship sails, but not in smooth waters as Hae Soo's mom and sister despise Jae Yeol's disorder.