Kotarou is inherently lured to the supernatural due to his superhuman capacity to permanently rewrite any aspect of his body to increase his strength or speed. A chance meeting with the Occult Research Club's lone member and president, the "Witch" Akane Senri, leads to Kotarou recreating the club by enlisting Kotori and three other members: the clumsy transfer student Chihaya, the rigorous class representative Lucia, and the humble Shizuru. Kotarou will inevitably confront a fate that only he may be able to rewrite as he uncovers buried truths of each member of the Occult Club via their shared travels.