Not only has a Wakumusubi been stolen from the Kura, but now a mysterious group of masked men has abducted the "suicide princess," Mana Tsurumi, from their custody too! As the sheer scale of this real-world conspiracy begins to take shape, a new brilliant detective is born within an id well. Will the hint they provide lodge deeply enough in Narihisago's subconscious for his Sakaido persona to bring the truth of Tsurumi's well to light?!