Three It kids. See how they run. Only 666 seconds to tag someone else...or it's game over. But when the Anti-Curse-God Office prohibits anyone else from entering the building-supposedly to avoid creating more victims-Saeyama and the police have to identify the contractor from the outside. Meanwhile, Yamazaki gets stuck inside with the mysterious transfer student possessing otherworldly powers of unknown origins. Is she friend or foe...?