Gender: Male Age: 16 Appearance: Blond hair and red eyes Personality: Possesses a hunter's instinct; has no hesitation when it comes to killing. The 'Night' of the twins who divide night and day. He has no equal during the night. Weapon: Bow and arrows Tsugai: Left and Right

Gender: Female Age: 16 Appearance: Black hair and red eyes (wears an eyepatch over her right eye). Tends to be obsessed with her older brother, Yuru. Personality: Kind, affectionate, polite, and energetic. The 'Day' of the twins who divide night and day. She becomes weak at night. Tsugai: Yin and Yang, Power of the Sun (Deconstructs all matter; activated by clenching and opening her hand)

Real Name: Ryu Tadera Age: 35 Gender: Male Traits: A reliable adult, though he has a bit of a degenerate side. Weapon: Various types of firearms

Age: Estimated early 20s Gender: Female Traits: A messenger for the lower world working with Dera. Always wears a tracksuit. Weapon: Knuckles (Specializes in brawling) Tsugai: Zenko and Koro

Age: Unknown Gender: Male Traits: An executive of the Kagemori family. Serious and diligent. Weapon: Primarily uses weapons spat out by his small imp, Makoto. Tsugai: Scavenger

Age: Unknown Gender: Female Traits: Has lived a rough life, leading to a pessimistic self-view. Accustomed to pain and has no qualms about mass slaughter. (Appears to be a psychopath or sociopath.) Tsugai: Gabriel

Age: Unknown Gender: Male Traits: A Tsugai owned by Yuru. Has distinct emotional shifts and a boisterous personality. The natural enemy of the Sun's power.

Age: Unknown Gender: Female Traits: A Tsugai owned by Yuru. Shows little emotion and is generally stoic, but becomes aggressive in battle. The natural enemy of the Seal's power.