Atomi Riku, a former bullying victim, has been protecting himself by “acting moderately tough” so he would never be looked down upon again. One day, when he tries to stop bullying in his class, he catches the attention of the city’s most vicious delinquent gang, “Hokuto-ren” (Northern Dipper Alliance), and gets framed for a crime. In his moment of crisis, Riku is saved by members of a mysterious group called “Crawler.” Meeting these comrades and overcoming his own weakness, the boy begins to confront true evil.
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