Go Hell Go: Tsukiotoshiteko

Hell is where the story is set, and the protagonist is an oni named 8246 — known as Yatsushiro — who has been getting by as a guide for newly arrived souls. The pay is not good, and Yatsushiro is not living well. When a recently deceased girl named Tomori comes through, the two of them develop a plan together: a scheme ambitious enough to pull them both out of poverty in a single move, regardless of the cost or the chaos it creates. The chaos they end up creating turns out to be large enough to threaten the structural foundations of Hell itself, which was not part of the original plan.