Elis' mating season is upon her, something which befall those who have evolved from cats. Elis goes after Kio, but Aoi and Manami try to desperately stop her, only to falter in the face of their own desires.
The four of them continue their steamy exchange, and eventually find themselves in Nakano Broadway. Meanwhile, the cat-ear, cat-tail worshiping organization, the Cat-Ear Corps: Underside of Kitten Paw, begin their operation, "Unyaakun." Unyaa!