Overwhelmed by recent events, Ryuko demands answers from her homeroom teacher, Aikuro Mikisugi. Meanwhile, Uzu Sanageyama, Honnouji Academy’s Athletic Committee Chair and on the Elite Four, makes a request of his own… to challenge Ryuko to a duel!

Ryuko's rampage continues, and thanks to Ragyo and Nui she has an unexpected new ally. With Satsuki as the target, will the Elite Four and Nudist Beach be able to withstand the onslaught?

A surprising turn of events catches Nui Harime off guard and gives Nudist Beach a chance to regroup and plan their next step in the fight against Ragyo. But will Ryuko and Satsuki be able to settle their recent conflicts?

The final confrontation is at hand! Will Ragyo and Nui bring on the end of the world, or will Ryuko and the others be able to stop them?

It's graduation at Honnouji Academy, but not everything is as it seems. Ryuko Matoi and the gang must defeat their final enemy.