Chihira-kun wa Maryoku ga Tarinai
A guy finds out that he inhereted the incubus gene from his ancestor and needs to consume liqud. from a male, he reaches out to his childhood friend who lives next door to him and they have sex... After a while he finds out that his friend is becoming weaker, turns out that when he consumes his magic he is essentially also taking his life essence. He could however not take his life essence if both of them were in love with each other.
Aku yori Aku
A story between a fallen angel and an incubus who falls in love with him. The incubus dissapears after the fallen angel has sex with him and confesses that he is in love with him and later a guy who looks just like the incubus moves in next door. I don't know am I supposed to be sad, I kind of was when he disappeared and the human guy just forgot..
Kimi to Oishii ai no Kotoba
Cute story about a guy who wants to have a relationship and tries to say I love you, he meets an incubus who lives on eating words and he has specific cravings.
Elite Incubus Wants to Make Me Come!
Omega to Akuma no Sefure Jijou
An omega who works in a host club, tries to summon a demon to help him fullfil his wish of becoming a number one host. He summons an incubus, the incubus needs to impregnate him in order to fullfil his wish, but the omega refuses to be impregnated and demands his wish gets fullfilled. The demon's sperm works wonders on the omegas body, so he still gets his wish fullfilled, however since the demon can't impregnate him he starts to vanish.... Very cute, interesting plot, a love story between a demon and an omega.
Tabesugi Kinshi!