in 1 arc, mc has an obsessive believer half-soul, joshua, and occupying the other half of joshua's soul is the mc, who has no faith. joshua (crazy) is absolutely fanatical about the god of light, while mc hates that he has to share a body with joshua and prostrate at the light god statue's feet, the light god is enamored with joshua (crazy) and his wholehearted love prayers for him and grants him a lot of idk powers, so, joshua has a split personality and so does the light god, he (the light god) is also the god of destruction, the god of destruction is mc's lover and the god of destruction kidnaps joshua and joshua (rational/mc) wholeheartedly accepts him once he finds out the god of destruction is his lover through a kiss, the god of destruction is confused because he thought joshua was enamored with the light god and mc explains that he has a split personality and yeah (lmk if u need more details) joshua (crazy) is what the story calls the og joshua and joshua (rational) is what the story calls the transmigrated mc
Is it Quickly Wear the Face of the Devil? I don't remember which arc though. It's been too long since I've read it.