hyunjin is your ex bf, you both are an idol. you guys have been date for a year but ended up breaking up

after break up you are include in a bad fake scandals that makes you do a contract relationship with cha eunwoo. an actor.. you never meet hyunjin but after a while your group get an invitation to do collaboration with straykids

when you two meet he's not same as his old self. he's now cold.. you were awkward with him but you have to act polite because he's older than you