Someone's broken into the principal's room in search of files that could put the whole school at risk. In order to track down the culprit, the Leadership Committee plan to use all their resources, including a new student, fireworks and skimpy costumes.
The Leadership Committee president falls for a dashing boy. One problem: The boy is actually Azuki dressed in guys' clothing. Rather than come clean about the mistaken identity, the other girls make Azuki keep up the charade and go on a date with her.
When the principal at Tenbi gets fed up with the school, she puts one of the male students in charge. Pretty soon the academy turns into one big harem full of erotica readings, bouncy exercises and chest inspections.
Kodama goes underwear shopping, but she ends up blowing all her money on a fluffy teddy bear. However, the bear ends up being a pervert with a mind of its own, bursting at the seams to get its paws on every girl in sight.
In order to prove herself worthy of joining the Leadership Committee, Uruchi must complete a series of complicated trials, which involve learning absolutely everything about Haruko's body and bathing habits.
Aki, the buxom school nurse, needs someone to pretend to be her boyfriend, so she turns to Takeru, one of her students. When the two faux lovebirds end up handcuffed together on a romantic deserted island, things get difficult for Takeru.
A graduate of the academy returns and uses her clothes-shredding powers to steal Haruko's memories and Maken. The security team try desperately to track down the thief, while Inaho and an amnesiac Haruko fight over Takeru's affections.
Highjinks and wardrobe malfunctions abound at Tenbi Academy ,as Takeru and the rest of the school's security force try to track down a perv who's been taking lewd photos of female students and posting them on the school bulletin board.