Asking about a manga

So I need help finding a manga about 2 dudes that do the deed with this girl and she gets pregnant and then later she either dies or runs away I don’t really remember but the 2 dudes have like custody of the little girl( I think it was a girl) anyways they live together so they can find out who gets to take care of her. One of the dudes have a crush on the other one? And I think he has a job as a songwriter. I think he doesn’t really get credit for his songs or something like that? And it’s gay and I don’t really remember anything else but plz help me search for it