The perfect class leader, Hanekawa Tsubasa. As the benefactor of Araragi Riki, she was charmed by a cat on the first day of the Golden Week - that was a game that was forbidden by someone... a story of people turning into beasts. The sealed "Nine Days of Nightmare" is finally about to reveal its true form! This is the modern weirdness! Weirdness! Weirdness! This is the first love that fell into it unknowingly.