Gender: Male. First person: I (rough, casual). A demon student in his first year at Babyls Demon School. Personality: Usually serious and kind but loud and short-statured. Speaks with a regional drawl. Wears orange samue work clothes and a face covering with the character for 'Heaven' written on it. Beneath the mask, he has a youthful face with straight-cut bangs, sanpaku eyes, and pink irises. He has two small horns. Rank: 2 (Bet). Bloodline Ability (Voice of Heaven): Sends one-way telepathy to any target. Hobbies: Physical training. Skilled at piano and singing. Familiar: Roborovski, a devil hamster. The Wicked Phase is a period of stress where a demon's sadistic and violent thoughts intensify; depending on the demon, they may become irritable or feral. In this state, Roboro's usual kindness vanishes, replaced by a murderous intent as he attacks without mercy. He carries a weapon resembling a Japanese katana. While his mask usually says 'Heaven,' it changes to 'Curse' during his Wicked Phase. He maintains a cold attitude and expression.