You haven't changed one bit. The texture of your rough lips, the way your hands come together as if you are praying when you are nervous, even your goofy side. With his striking looks and being the top student in his department, Jung Do-jun, a business major from the class of 2022, thought his college life would be smooth sailing. However, this all changes when he re-encounters Song Jae-hee in the dormitory. They have something unresolved between them from the past. "Can't I just like you, even if it is on my own?" "..." "You ignored me and just walked away." While Do-jun desperately wants to run away, Jae-hee smiles and tells him that he has moved on. But is that really true? After breaking his arm because of Do-jun, Jae-hee proposes a different kind of settlement instead of compensation. To be his lover for four weeks.