
The Class President is the unnamed girl heading Asa Mitaka's homeroom at Fourth East High School. Driven by jealousy, she strikes a contract with the Devil she takes for the Justice Devil and turns on Asa, serving as a key villain of the Justice Devil arc.
In her human guise she is an ordinary high schooler of middling height and build, her short, pale hair stopping above the shoulders and pinned with a clip. The form granted by her contract is grotesque by contrast: a towering mass of flesh balanced on a pair of huge hands, her actual lower body dangling exposed beneath it while copies of her own face cluster across the top.
At first she seems gentle and encouraging, going so far as to seek Asa out and comfort her when the class received Bucky. The truth is uglier. She is self-absorbed and prone to wild assumptions, convinced that Asa was sleeping with their teacher Mr. Tanaka, a man the president herself was involved with. As with Yuko, there is reason to suspect her contract twisted her into something far removed from who she once was.
Her power flows from a bargain she struck with the Fire Devil, a Devil she wrongly took to be the Justice Devil. Surrendering her humanity bought her the ability to assume a Devil's shape bristling with talons and lashing tendrils. The claws are vicious enough to lay open Asa's face and split it apart, while the strength behind her tendril and claw strikes far outstrips anything a normal person could manage. She is fast as well, quick enough to trade blows with Yoru without falling behind.

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The Class President is the unnamed girl heading Asa Mitaka's homeroom at Fourth East High School. Driven by jealousy, she strikes a contract with a Devil and turns on Asa, serving as a key villain of the Justice Devil arc.
The Class President made a contract with the Fire Devil, a Devil she wrongly believed to be the Justice Devil. The bargain let her surrender her humanity for a clawed, tendril-lashing Devil form.
The Class President was convinced that Asa was sleeping with their teacher Mr. Tanaka, a man the president herself was involved with. Her jealousy drove her to attack Asa, though her contract may also have twisted her personality.
Her contract granted her a Devil form bristling with talons and lashing tendrils. Her claws can split Asa's face apart, her strikes far outstrip a normal person's strength, and she is fast enough to trade blows with Yoru.
The Class President ends up deceased after her turn as a villain of the Justice Devil arc.
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