Return of the God of War: Start by Solving the Case!

The young policeman Qi Yuntian traveled to the country of Daxia and thought he could spend his whole life wandering. However, on a majestic rainy night fifteen years ago, his lover died tragically. His father angrily kicked him out of the house. Qi Yuntian fled Kyoto in grief and anger, and joined the Northern Demon Suppression Army under the leadership of a mysterious man. Qi Yuntian relied on gunpowder and a summary of five thousand years of world tactics. Qi Yuntian worked step by step and eventually became the Great Xia God of War. However, due to the arrangement of fate, Qi Yuntian was forced to return to Kyoto, where he desperately escaped. But is the truth that simple? The curses carried by the four great families, the mysterious and unspeakable monsters under the Qi Mansion, the ghost patterns of the Li family that squirm and eat away at flesh and blood, the corpses that were eaten one after another with only shriveled flesh and skin, the Gu masters from the Miao border, the evil gods from the sky, the gods who control the way of heaven, Qi Yuntian investigates step by step, looking at the increasingly confused Kyoto, what is the truth, everything points to the so-called "heavenly guest"...