The city full of strange stories - Ikebukuro, the mythical Headless Horseman: Celty, Shizuo full of violent aesthetics, Izaya who loves human beings, the sin song who wants a lover, the Moseki Doshiki Gang DOLLAS, the world of Narita Ryogo overlaps with the real Ikebukuro, the human agency Posou Jingsi Institute Her favorite characters appear in front of her one by one, but she is the only one who realizes that daily life has changed. She and her collaborators are about to be involved in a chaotic whirlpool. At the same time, magicians, murderers, and evil eyes among heretics will be twisted into the spiral together, and peaceful daily life will no longer exist.