Everybody is excited for the Vaentine's Day event at school. however, it's cancelled by the new teacher Someya Keiji along with a whole bunch of new strict rules. Nika rallies up her classmates, and creates a bargain with Someya that if the class's exam average is at least 70% then he will take away all his rules. Nika has everyone study at her house and overcomes many obstacles for then her classmates don't discover her 'OFF' mode. Successfully finishing exams, she learns about Someya's past at the school and confronts him multiple times. At the last confrontation she learns that she looks exactly like His ex girlfriends and he kisses Nika in front of Arata.