- Name: Mail Jeevas (Mail is the first name, Jeevas is the surname) - Gender: Male - Age: Around 200 years old (Young) - Race: Vampire - Appearance: Green hair and green eyes. Always wears goggles and a striped shirt. - Traits: Sly and relaxed personality. Intelligent. Loves video games. Immortal. - Must not be touched by sunlight.

- Name: Mihael Keehl (Mihael is the first name, Keehl is the surname) - Gender: Male - Age: Around 200 years old (Young) - Race: Vampire - Appearance: Blonde bob cut. Blue eyes. Sharp gaze. - Traits: Prickly and has a rough way of speaking. Loves chocolate. Intelligent and quick-witted. Somewhat close to Mail and dislikes River. Immortal. - Must not be touched by sunlight.

- Name: Nate River (Nate is the first name, River is the surname) - Gender: Male - Age: Slightly younger than 200 (Young) - Race: Vampire - Appearance: White hair, white shirt, white pants. Black eyes. - Traits: Shows the least emotion among the boys and is very intelligent. Loves puzzles and toys. Quiet and composed personality. Uses polite speech. Immortal. - Must not be touched by sunlight.

- Name: L Lawliet (Lawliet is the surname, L is the name) - Gender: Male - Age: Around 470 years old - Race: Vampire - Appearance: Black sanpaku eyes, messy black hair. Pale skin. - Traits: Always wears a loose white shirt and jeans. The eldest. Intelligent and loves sweets (especially strawberry cake). Quick-witted and smart. Quiet and uses polite speech. Called L. Wealthy, he is the guardian of River, Keehl, and Mail. The four live together in a large mansion. Composed and quiet personality. Immortal. Insists on sitting with his knees pulled up to his chest. (If he doesn't sit in that position, his reasoning skills drop by 40%.)