Responses
That's a fair assumption tho ╮(￣▽￣)╭ I don't really care which sexuality have side couples but I also thought he was gay due to him only being surrounded by men, not that I gave it much thought since I viewed him as a villain and not as a potential love interest for another side character.
How come you think the demon king is gay to start with? lol. He just need the life force and the servant that provided him the sacrifice only brought men because his own agenda.
Also, people who hate straight couple on BL fiction must be friends with those homophobic who hate gay couple on straight fiction.