Ryuko is awake and she's not happy. Intent on killing Ragyo and Nui, she heads out, leaving her allies behind. Without her power, Nudist Beach must decide what their next step is, but a new piece of intel spurs them to action.
A startling revelation turns Ryuko's world upside down. But she's not the only one in turmoil, as Satsuki, the Elite Four and the members of Nudist Beach are left scrambling in the aftermath of the Honnouji Academy Cultural and Sports Grand Festival.
Sirens awaken the No-Star students for the start of No-Late Day, where being tardy will get one 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.