whats it called again ?

i read this yaoi awhile back that i can't remember the name of i can only remember certain bits like it was this guy who lives in this temple with his father and his other father who's a demon and the guy falls in love with this cat demon (i think ) and they end up having a kid out of nowhere and he then finds out where he came from (product of his father and the demon) would really appreciate the help thankkk yooouuuu