Hi! So I read a BL world hopping novel a while back and I can't remember the title. The first world from what I remember is an entertainment industry one and the MC is in the body of someone who is used as a substitute for the original protagonist by some CEO. MC then participates in a variety show with the protagonist and he slowly gets popular and the protagonist falls in love with the MC but there's also this godfather guy who is the CEO's boss (?) Anyways that's all I remember.