Responses
Did the devil have long red hair or was the seme a knight before going to hell?
https://www.mangago.zone/read-manga/the_devil_is_spicy/
Could be this one
It of a guy that got sent to hell it’s a BL and it’s of a guy that got sent to hell and he was like a really hot guy in his world and the devil forms a crush on him and eventually him and the devil get married