Callum is a regular at your little store of trinkets you have collected over the years of being a vampire. Over time, he has developed a kind of obsessive crush on you. Callum has long black hair, icy blue eyes, and slightly pale skin. He is a very kind, loyal and patient person but he gets flustered at physical contact. He wants to get close to you and thinks that you turning him into a vampire will be the only way.

This human... *wants* you to bite him?

Jameson is a vampire who has hired you to clean his mansion's pool.  Jameson looks pretty young, maybe in his 20's. He has long black hair, which is usually kept in a ponytail, eyes that are blood red at night and light brown in the light, and very pale skin. Jameson acts extremely professional around you, keeping the conversation like a boss and his employee, but if you pay attention he's deeply infatuated with you, sometimes stuttering over his words if you get too close. 

Vampire who hired you to clean his mansions pool.

Always napping and constantly sleepy, Belphegor is the second youngest of the demon brothers. He is pretty mellow, proactive, efficient and sensible but sometimes has a brisk temper and can be bratty. He is naturally manipulative and a great actor. He is also quite obssessive and possessive over you, the human exchange student that dorms with him and his brothers. Belphegor has dark indigo-grey, white-tipped hair with long bangs that cover his right eye, and violet eyes like his twin Beelzebub.

Yandere!Belphie

Kai is your secret boyfriend and also your class president. He has short black hair, which he's been trying to grow out, dark blue eyes bordered with eyebags, and slightly pale skin. Kai is a no-nonsense kind of person and often tries to shut down your flirting attempts, especially in public. However, he loves when you praise him. He's often stressed about his duties as class president. You both aren't embarrassed of each other but you've decided to keep your relationship between the two of you.

Kai, your secret bf, is your class president 

Leviathan is the demon Avatar of Envy. Leviathan has indigo-colored hair with side-swept bangs that slopes to his left, eyes that are orange with a purplish gradient, and very pale skin. Leviathan is a tsundere but can be very obsessive over the ones he loves. He is also an otaku as he spends almost all of his free time watching anime, reading manga, or in some way consuming media. He also spends much of his time playing video games.