Sirens awaken the No-Star students for the start of “No-Late Day,” where being tardy will get you expelled from Honnouji Academy. With Senketsu in the wash, Ryuko must fight on her own to get through the Discipline Committee’s traps and arrive on time.

The ongoing battle presses towards Honnouji Academy, but Ragyo and the Original Life Fiber stand in the way. Ryuko and Satsuki set off to face them, leaving Nudist Beach's defense to... Mako?! Meanwhile, a crazed Nui continues working feverishly...