God sacrifice type beat

Basically I read it in 2020, a guys family has been sending "sacrifices" to a god and he goes instead of his sister, he and that god start getting along well and he also starts to like him, while he goes around with that god he meets the god of hell(?or sum similar). All's going well til he gets betrayed by the first god, he dies and reincarnates as the god of some river(idfk) and the hell god finds him. That's the last I remember