yaoi manga

i once read a yaoi manga, where the uke died. he have been living with his seme, but the seme isn't actually a human. the uke used to have nightmares like he died. he felt that he just died, again and again considering how careless he is, it was almost like real, and in the end somehow he found out that all this time, actually his seme has been bringing him back to life after the uke died multiple times from unlucky accidents or something like that. i forgot the tittle, and have been researching like crazy but couldn't find it. ;-; so if anyone knows.. please tell me. i've spent months and i'm suck at trying to find this manga.