Its a gl story with a concept of cannibalism in some way. I vaguely remembered an early chapter wherein they're on a restaurant and the girl (probably the mc) was slicing her skin off to cook it on to the grill to feed it to her superior???
I think I've red this story on manta / webtoon
Pound of flesh
Its a story where the male lead is an assassin which died, and sent to hell but hell is actually some kind of prison. I remember a scens where he was put into like an arena where the winner gets like a month of time cut off their sentence to rebirth.