Domestic mystery First human murder

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Domestic mystery
This is the story of 」, the first murder case of mankind in 「. In any crime, there is 」, the founder of 「. He was beaten to death by the anger of a primitive man. He killed his comrades with a big club. What happened in ancient times? This is an unprecedented mystery that approaches the origin of crime. It contains five volumes : 「 fraud, 」 「 wiretapping, 」 「 kidnapping, 」 「 secluded murder, 」 surprise.