Zhou Mingrui wakes in the body of Klein Moretti, a university graduate in the gas-lit city of Tingen, in a world that blends Victorian industry with hidden occult pathways. After Klein's mysterious suicide and an accidental summoning of entities beyond comprehension, Zhou adopts his identity and joins the Nighthawks, a covert division under the Church of the Evernight Goddess, to investigate Beyonder incidents. His first Sequence on the Fool Pathway sets him on a climb toward the title that names this arc: the Clown.