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Другие имена
Maruo Kaidou 海堂マルオ Маруо Кайдо | Maruo Kaidou | 海堂マルオ

A kid who's too strong for his own good. He was abused by his father when he was young, and that, along with his love for manga, made him decide to train until he was strong enough to "beat the final boss" - only to be disappointed when his father ended up being too weak of a fight. He trained hard enough that he was able to split boulders by the time he was seven. He later "beat up a whole school by himself", which caused him to be expelled. One day, when he's down on his luck, a gang boss named Urara offers him a job as a Yakuza, not knowing that he's just a normal person and not an Ayashimon.