Maiko and her gangs manage to rescue Takuro and Saori from the hand of Reona, the leader of social club. Soon after, Reona gets caught and detained inside a cage to receive extreme sex lessons and disgraced by someone who holds a grudge on her. Her pride being torn apart, Reona suspects Maiko as a culprit and tries to give her the same disgrace but...

Reina, the board chairman of St. Alcadia, forces her sister Reona to wear virtue band on her vagina so that Reona cannot have sex with anybody in school. Reona thinks it's unfair that only she cannot enjoy sex. So she tries to give all the students the same feeling. She makes up the law to ban all sexual acts in the school.