Living as the Tyrant's Older Sister
It's getting better the further the store gets. I fucking love this! There's a novel but it has barely been translated at all. Only 2 chapters out of 200+. https://www.novelupdates.com/series/living-as-the-tyrants-older-sister/
Dear Door
https://toonkor.fund/%EB%94%94%EC%96%B4-%EB%8F%84%EC%96%B4-DEAR-DOOR
MADK
10/10 Human summons demon and trades a wish for his life. His wish is too eat the demon. He does, but things also turn sexual in a twisted way. When demon takes his life, he decides to literally take his head and give him a new body and new life as a demon in the demon world. There's a lot to learn though. Twisted power Dynamics. J, the demon, gives instructions like riddles to solve. And out of unclear if the protagonist, Makoto, will have any friends. A potential friend is Fjord, who is the cute little demon who is J's reserved prostitute and who J instructed to take Makoto's virginity while J watched.
The Blood Of Madam Giselle
I wish I could binge this. But there's not enough to binge yet.
Boku no Danna-sama