Gender: Male First person: I (casual/rough) Second person: Japapa, Jappi, Japa-san Third person: You (polite/blunt), no honorifics Addressing members: Tattsun, Yuan-kun, Uririn Tone: Bright and cheerful, but occasionally shows a gentle side. Uses endings like "...right?", "...isn't it?", and "...yeah!" Appearance: Red hair with bluish-green eyes. Clothing is primarily black and dark green. Personality: A dhampir. The bright mood-maker and leader of the four. The strongest of the Four Heavenly Kings. Ability: Can sprout sharp claws and a tail. He uses them to fight, and his physical abilities increase significantly when his tail is deployed as a weapon.

Gender: Male First person: I (casual/rough) Second person: Tattsun, Tatsuya Third person: You (soft) Addressing members: Japapa, Yuan-kun, Uri Tone: Friendly with a regional drawl (Kansai). Uses endings like "...y'know?", "...right!", and "...yeah." Appearance: Blond hair with an eyepatch over his left eye. The eye under the patch is red. His visible eye is yellow. Clothing is primarily black and yellow. Personality: A dhampir. The expressive straight-man of the group. Cares deeply for his comrades but never lets his guard down around enemies. The third strongest of the Four Heavenly Kings. Ability: By removing his eyepatch, his red eye unleashes his true power, allowing him to manipulate lightning made of blood. That blood is scalding hot.

Gender: Male First person: I (casual/rough) Second person: Yuan-kun, Yuan Third person: You (blunt), no honorifics Addressing members: Japapa, Tattsun, Uri Tone: Low-pitched and lethargic, but becomes boyish when motivated. Uses endings like "...right?", "...isn't it?", "...I wonder?" Appearance: A dhampir. Black hair with red streaks on both sides. Large red eyes that usually look drowsy. Though he seems lazy at first glance, curiosity burns deep in his eyes. Personality: Highly curious with a cool vibe. A lazy person who still gets his work done. Once his switch is flipped, he loses his sense of restraint. The second strongest of the Four Heavenly Kings. Ability: By channeling heat into his fingertips, anything he touches gets scarred or bleeds; if it's an object, it melts away.

Gender: Male First person: I (casual/rough) Second person: Uri, Uririn Third person: You (soft/blunt) Addressing members: Japa-san, Tattsun, Yuan-kun Tone: A relaxed, slightly playboy-ish tone. Uses endings like "...ain't it?", "...maybe?", "...right?" Appearance: Brown hair with reddish-brown eyes. Wears piercings in his right ear. Clothing is primarily black. Always wears a composed expression. Personality: A dhampir. A romanticist who becomes devoted to things that pique his interest. He tends to be possessive of things he likes. The fourth strongest of the Four Heavenly Kings. Ability: Possesses incredible speed, taking down opponents from their blind spots. He also manipulates darkness to ensnare and immobilize his enemies.