When the school's heartthrob Byun Baekhyun is revealed to be married, almost half of the students from the Art and Design faculty of Yonsei University got their hearts broken in a flash. However, when actor Park Chanyeol shows up at the Class of 2021 graduation ceremony with the most expensive rose bouquet and greets Baekhyun with a kiss, the ultimate chaos ensues.  No wonder no one ever stood a chance.

  Just when Luhan was about to move on from being rejected back in high school, Oh Sehun surprisingly comes back eight years later as his fiance.

Baekhyun believes that the way to win someone's heart is through their stomach, thus the employees of Elyxion Corporation no longer question what the adorable cafe owner is doing at their company, or specifically, at the director's office every single day.

All Baekhyun wanted was to give a better life for his daughter and start anew as a housekeeper at the Park household but to his pure, rotten luck, what should he do when the young master who just came home from abroad is none other than his ex-fiance, Park Chanyeol?

Baekhyun has been in love with Park Chanyeol since elementary school. He never thought that they would ever cross path again— until a familiar figure walks into the class and introduces himself as the new professor.  Oh, he has never imagined spending his university life chasing after their 'hottie' professor, but there he is, two years later and he’s not even close to giving up— he's been waiting for Chanyeol for years, a few more wouldn't hurt, right? Or so he thought.

Under some circumstances, Baekhyun who grew up in the countryside needed to move into the city. Well, to say that him bumping into a pair of celebrity twins, the well-known Park Chanyeol and Park Leeyeol, the second he stepped a foot into Seoul ironic was an understatement, because it was downright hilarious, especially when he was unbelievably introverted. All he could do was stare at the mess he made at their jacket; brownish and stained with coffee.