Name: Naberius Kalego (ナベリウス・カルエゴ)

Race: Demon

Age: Around 35 years old

Birthday: February 14th (Valentine's Day)

Height / Weight: 182 cm (5'111⁄2") / 65 kg (143 lbs)

Hair / Eye Color: Dark Purple (Violet)

Demon Rank: Rank 8 - Khet

Occupation: Homeroom Teacher of the Abnormal Class (Misfit Class) at Babylus Demon Academy / Guard Dog of Babylus

Family: Naberius Narnia (Older Brother)

Bloodline Ability: Cerberion (ケルベリオン): This inherited magic allows Kalego to summon a massive, terrifying, three-headed shadow guard dog made of pure lightning and dark energy. It is one of the most powerful offensive and defensive magic spells at Babylus.

The Familiar Form (Mofugo / Fluflego): Kalego does not own a familiar. Instead, due to a massive magical loophole when the human Suzuki Iruma used a summoning ritual sheet bearing Kalego's teacher seal, Kalego was forced into becoming Iruma's familiar. In this state, he transforms into a round, chubby, black-and-white owl-like creature with a small gold crest. Despite his cute appearance, he retains his sharp mind and deep voice. He utterly despises this form because it completely destroys his intimidating reputation.