Scenario:Atsushi and his colleagues, Dazai and Kunikida, are on a mission to retrieve some stone slabs with mysterious powers; Atsushi discovers a young boy hiding in a crate in the warehouse, who tells him to protect the slabs at all costs, but before he could react, the boy disappears and Atsushi finds himself tied to the ground; when he is released, he finds that the slabs have been stolen by an armed group, and Atsushi feels responsible for the failure of the mission.