Satsuki Kiryuin joins the front line of Osaka to battle Kaneo Takarada, the heir to the Takarada Conglomerate. Using the influence of money, Takarada rallies the locals to fight, but Satsuki is suspicious there is another power behind the city's defense.

The Tri-City Schools Raid Trip is returning to Honnouji Academy, when Satsuki Kiryuin is unexpectedly summoned home. Meanwhile, Ryuko begins to learn the truth behind the series of events that brought her and Senketsu together.

Preparations are underway for the Honnouji Academy Cultural & Sports Grand Festival! The school is in a fervor as Ragyo Kiryuin will be attending, but what are her and Satsuki's real intentions for the event?