Blueming

Cha Si Won, a handsome college freshman majoring in Film Studies, has always accepted societies' shallow views on lookism and works hard to maintain his looks and popularity. He meets Hyeong Da Woon, his classmate, who is naturally gifted with everything that Si Won has to strive for.

Cha Si Won narrates how he was teased for being chubby as a child and ridiculed for having a father who abandoned his family. He develops a sense of resentment towards Da Un for his natural charisma, but to his dismay, gets paired with him for every group activity. After a party, a drunk Cha Si Won blurts out his honest feelings to Da Un.

Si Won wakes up on Da Un's bed after Da Un decides to take him to his own home as he was intoxicated and unconscious. He leaves embarassed and attempts to avoid him at the University. Da Un, nevertheless, tries his best to get him to talk. Following a half -hearted conversation with him, Si Won accidentally bumps into a painting by Yun Jeong, freshman of his same major. They formally get to know each other. Da Un decides on a date for their joint assignment and Si Won agrees.

Si Won and Da Un decide to visit a book cafe, but they flee the spot after Si Won runs into his father with another woman. He rides a bike to cool himself off, leaving Da Un behind after he falls off his bike. Si Won returns and apologizes for his insensitive behaviour. Da Un clears up any misunderstandings regarding his actions to Si Won. He gives a 'covered kiss' to him, leaving Si Won confused.

Da Un follows Si Won to his home and they run into Si Won's mother and sister, who invite Da Un over for dinner. He stays over at his place that night and reveals that it was his birthday. Si Won asks him why he never told anyone, but Da Un insists that he had a great day, requesting the permission to hang out at his home as his birthday gift. The two of them overcome their differences and starts to grow closer. Si Won's scenario is unexpectedly selected as the winner of a contest in which he had insisted that he would not participate, leading him to get labelled as a backstabber by his friends and seniors. Moreover, he comes to know about Da Un's parents' involvment in it.

Si Won finds out that his sister had submitted his work. He becomes the subject of rumour and ridicule and a chubby childhood photo of his is circulated around. He asks whether Da Un (whose parents were the owners of the production company that held the contest) had had a hand in making him win. He loses control and snaps at Da Un when he tries to comfort him. He, nevertheless, takes Si Won's bike back home for him. Si Won goes to Da Un's home and has a heart to heart talk with him. He finally speaks out about his insecurities and reveals that he knew that Da Un likes him.