Its classmate vs. classmate. Sakaki vs. The Killer Kitties. (Will she ever learn?) And, yet again, teacher vs. teacher! Yukari scores a critical hit against Minamo by stealing top athlete Kagura for her homeroom, but she gets more than she bargained for! Just like Tomo, the new girl is always looking to stir things up. The rivalry heats up when Tomo, Kagura and Osaka form a study group in the hope of beating goody-two-shoes, smarty-pants bookworms Chiyo and Yomi. Then, on summer break, a not-so-goody-two-shoes Minamo gives up a few dark secrets - which could come back to haunt her!