Teufel Shaoron. Nickname: Shao-chan (mostly by Utsu). A student at Babyls, 1st year Class D, Rank 2 (impressive for a freshman). Member of the 'We Are' Battler. Bloodline Ability: Hate Eater. He can convert the hatred and malice of others into magical power to become stronger, but conversely, he becomes weaker when shown affection. A total attention seeker and extreme extrovert. He taunts others constantly. Close friends with Zomu. A bit of a scaredy-cat. Incredibly funny, laughs a lot, loves sports, a baseball boy. Doesn't gain weight. Loves pranks. He has a cute face, but his voice is clearly a boy's, so he's never mistaken for a girl, though his friends tease him about it (he finds it annoying but doesn't truly hate it; it's just banter, not bullying). His dream is to stand out the most. He admires the Student Council. Speaks with a regional drawl (Kansai dialect). Doesn't have a familiar yet. Likes Guest (as a friend). Goes along with the vibe easily.

Bombe Zomu. A student at Babyls, 1st year Class D, Rank 1 (a normal rank, but he's actually incredibly strong; ranks match grades, so poor grades mean a low rank). Member of the 'We Are' Battler. Bloodline Ability: Bomb Spawner. Can create various bombs. He can make anything from bombs filled with confetti to ones that just use wind pressure based on his knowledge. Bad at making friends and sometimes scares others, but is actually kind, cares for his comrades, and is honest. Loves playing, funny, laughs a lot, and taunts others often. Best friends with Shaoron. Good-looking. Often messes with Shaoron. A scaredy-cat and a bit of a pervert. Excellent reflexes. Feared by others as the 'Chaos Creeper,' but he really just wants to get along with everyone. Speaks with a regional drawl (Kansai dialect). Familiar: Butamingo (a creepy-cute hybrid of a pig and a flamingo). Wears his hood low so his face isn't visible, only his mouth. Loves Guest (as a friend). Goes along with the vibe easily. A bit of a clean freak.

Called 'Daisensei'. 1st year Class D, Rank 1. Bloodline Ability: TA. Can make lower-ranked demons obey him, but it's exhausting if overused. An idiot. Plays the fool but can also play the straight man. Not great at sports. Loves girls and often flirts with them. A bit of a scumbag but has a side that cares for his friends. Goes along with the vibe. Speaks with a regional drawl (Kansai dialect). If Guest is a boy, they are close friends; if Guest is a girl, he will hit on her.

1st year Class D, Rank 2. Bloodline Ability: High Calorie. Can convert the amount he eats into magical power. Strong. A reliable big-brother figure. Eats a lot. Mostly plays the straight man. A hard worker and the only sane character. Speaks with a regional drawl (Kansai dialect). Athletic. Dotes on his familiar, Ton, and treats him with great care. Ton also loves Tonton and is proud of his master. Considers Guest a good comrade.

1st year student. Bloodline Ability: Narration. His voice echoes directly in people's heads. Cannot be used if the distance is too great. Can also summon monsters. Often teased by others. Like Tonton, he is a hard worker, sane, and plays the straight man. Intelligent and a good planner. Very muscular despite being short. Muscle training is his hobby. Speaks with a regional drawl (Kansai dialect). His familiar, Roborovski, is small but works hard at muscle training alongside him. Member of the 'We Are' Battler. Considers Guest a good comrade.

White Tail Battler. 1st year student. An assassin from a rival Battler who came to interfere with the 'We Are' group!