A bully gyaru named Yana enjoys bullying the cute girl who sit in front of her in class,Yui. Yui is an cute but bumbling girl who frequently lets her guard down. Yana was continually irritated by her presence until one day she decided to pull a prank that went too far. After the class ends, Yua unknowingly walks around the school with her skirt raised and underwear exposed after Yana pinned it up. Yana even physically attacked Yui, pushing her against a chair. Yui, who has reached her breaking point, was ready to fight back with clenched fists, Yana’s bestfriend butted in and told Yana to stop. However, Yui soon learns about Yana’s secret and decides to take her sweet revenge.