In the land of Heguo, Neo-Tokyo, Higashinohara, after being transported from another world, wishes for a peaceful life. However, he discovers a "Crime Handbook" in his mind that rewards him with attribute points and random rewards for apprehending criminals. The more vicious the criminal, the stronger his temporary attribute buffs become during capture. Mysterious ability fruits, powerful spell swords, and various abilities of different ranks all become amazing rewards in the "Crime Handbook." The police are baffled by the increasingly outrageous criminals, while Higashinohara just wants more challenging targets!