Hajimari Wa Sayonara
Kei is a being that lives off the life energy of humans and gets it by finding men to steal it from. Lately, no matter how much he gets, Kei doesn't feel satisfied and is always looking for the place he can return to. One day, Kei suddenly meets hotel owner Shou. Shou claims to have known Kei in the past and kept their 20 year promise of one day finding Kei again. However, Kei doesn't remember anything about Shou.
Kimi no Nioi ga Suki
Ch.1-2.5: When Youji won't stop sniffing his lover Akira during sex, Akira comes up with a plan to keep Youji from smelling him Ch.3-4: Student council president Takumi gets possessed by the incubus Glen Ch.5: Makita finds his eyes drawn to a charming, handsome guy who visits his class during break Ch.6: Tomoyuki has been dating his work senpai Ryouji fro 3 months, but Ryouji won't let his voice out in bed Ch.7-9: After figuring out he's gay, Saitou blackmails Miki into becoming his plaything
Akuma no Himitsu
Ch.1-2: 6 months ago, priest Marlowe took in Raoul, an injured boy with horns and a tail. Despite saying he isn't a demon, Raoul won't stop sexually harassing Marlowe Ch.3: Trainee teacher Hagino hates anything unproductive, including homosexuality. So, when his student Sawatari hits on him, Hagino is nothing but confused and annoyed Ch.4: At graduation, Tomono's best friend Yuba said he'd wait for Tomono's reply until winter. It's now winter, Tomono still hasn't responded Ch.5: Baldur returns to the demon world, after failing to convince his incubus half-brother Raoul to return. There, Baldur is reunited with playboy incubus Zahan, who has been gone for half a century, and Zahan offers to help Baldur
Harukawakun To Yukisensei No Fudanshi Jijo.
Ch.1-4.5: Fudanshi Harukawa's the assistant of his favorite BL mangaka, Fuyuki, a middle-aged man. Despite both men being straight, Harukawa falls for Fuyuki. When Fuyuki asks Harukawa try gay sex with him, Harukawa refuses, until finding out their feelings are the same Ch.5-6: Sed, an incubus who can only seduce men, is caught by exorcist Rodi and gets forcibly reverted to his true, middle-aged form. After seeing this form, Rodi makes a deal to not to exorcise Sed, if Sed has sex with him
Koakuma wa Ore no Iinari
Ch.1-2,6.5: AV actor Rui discovers Eak, a virgin incubus who wants Rui to fall for him, in his room Ch.3,6.5: College student Kazuma is secretly an AV actor and the veteran actor, who won't stop asking him out, is his professor Kai Ch.4: Fuuma pays Rintarou to spend time with him, as he runs away Ch.5: Idol Akihi always wears rings from fans, but Sora's upset Akihi's never worn his ring Ch.6: Captain Ueda ends up in a love hotel with sheltered, rich 1st year Hime, who wants to learn more about sex
Joukyuu Mazoku no Otoshikata