Hasumi Chika is a high school girl living next door to Takai Tsukasa, a perverted gentleman obsessed with the female body. Nell is Chika's roommate, and a cat demon! When a deviant angel springs a trap on the trio, they are wrapped up in a close-contact game of hide-and-seek that compels Tsukasa to start sniffing at the girls' nether regions! It gets worse-or better?-when Nell whips out a magic potion that makes the female body impossibly voluptuous!