Hyunjae and Sooan once chased the same dream on a survival audition show. Through endless days of practice, an unspoken attraction slowly began to grow between them. Years later, they meet again, only to face an even harsher dating ban. This time, love is no longer just a fluttering feeling—it is a risk that could destroy everything they have worked for. Meanwhile, Jaemin, who has fallen to rock bottom after a scandal, meets Khun, a gifted musician from Thailand. Two men carrying their own wounds gradually become the one person the other wants to protect most. As dreams, fame, and love close in on them, four young men must answer one question: at the crossroads of ambition and romance, will they choose their debuts, or will they choose love?

Freshman year at university for three best friends. Hyun, Minwoo and Joo-Hyuk are looking forward to their freshman year at college. But little do they know of the trials and tribulations of love that await them outside the classrooms. From learning about maturity to being unable to forget the scars of past lovers, they'll have to balance both their studies and social skills as they venture off into this new journey.

As part of a class called "Marriage and Family", Ji-woo is given the opportunity to meet new people through a dating assignment . Unfortunately, though, there are more male students enrolled in the class than those of female, so Ji-Woo is ultimately forced to choose a male partner against his will. It is at this point that Ji-woo encounters his soon-to-be tall and handsome partner, Roa.