Traveling in the Strange Realm

Core plot: The protagonist leaves the campus and enters the official supernatural system. He grows from a novice ghost controller to a qualified field agent, unlocks dozens of basic strange rules, and understands the underlying rules and internal shady stories of the Investigation Bureau. Core tone: tiny mortals struggling to survive in a supernatural hell, with trial and error at every step, paying every step, full of despair, without any sense of satisfaction, and surviving on the edge of a knife throughout the process.