A Madman on the Edge of the Mountain and Half of the Water

The male protagonist travels through time, a diary, and a murder case that intersects time and space. It is not the subsidy that plunges a small town into a tens of billions orgy, but 'him'. There are three people in Qiang Qiang, one is Dong Nao, one is the richest man, one is a top student, and there is a small supermarket. Suspected of a major smuggling case worth hundreds of millions of dollars and a series of murder cases. This small town seems to have secrets that can never be solved.