What Does It Mean to Travel Through Time with Only a Magnifying Glass?

[Historical fiction + reasoning + martial arts + conspiracy] When he woke up, he was in a dead situation, wearing bloody clothes and holding a bloody blade. Let's see how detective Zhao Zhao finds a way out amid power struggles in officialdom and undercurrents in the world. Jiangdu is prosperous, but murderous intentions are hidden at the tip of a needle. Mysterious meteorite patterns and strange serial murders. He is neither a person in the world of martial arts, but a member of the Jianghu Bureau. The knife is out of its sheath, can the truth be far behind?