rival actors sb & bg who are forced to have a 'harmonious relationship' off camera to have better chemistry on screen to play bestfriends
their characters are both in love with one girl but bg's heart hurts a little too much seeing sb with her, for other reasons he can't explain
tyvn being desperate to get even just the littlest amount of attention from his hyvng he has been looking up to for his whole life, wanting to be his #1 dongsaeng and doing everything he can just to be the best for him including getting fucked or fucking the shit out of his hyvng
OR yvnjvn taking advantage of tyvns devotion towards him and using the younger to satisfy his own needs, because he knows he'll do anything for him and of course tyvn is going to do his best fucking his dearest hyvng dumb