In an attempt to win Kouta and defeat her enemy Nozomu, Chizuru breaks into a forbidden supply room and steals a cursed bunny girl suit.

Nozomu's brother, Saku Ezomori, puts a special bracelet on Kouta's wrist that will hurt him if he becomes sexually aroused, and Chizuru worries that if she tries her normal flirting behavior she could eventually kill him.

Japanese New Year has arrived! While Kouta is enjoying his time alone, Chizuru distracts him with a school swimsuit and she wants to play a love game.