The Great Culture and Sport Festival

The Great Festival and Sport Festival is an celebration organized in Honnōji Academy after the students return from the School Raid Trip.

Preparations
The school was rebuilt into a huge Olympic stadium. All the inhabitants of the town was given a special uniform to have set up a welcome the Board of Directors Chair and President of Revocs Corporation, Ragyō Kiryūin. Every citizen has an obligation to participate in the ceremony and if absent, they are to be severely punished.

Betrayal
When the VIP's, Ragyō Kiryūin, her assistant, Rei Hōōmaru, and the Grand Designer, Nui Harime,entred the stadium, it came to light that the ceremony was organized to allow an COVERS invasion. Each uniform given to the people of Honnō City presents Life Fibers traces and when Ragyō initiate the beginning of the Festival, the residents became trapped in an cocoon-shape Life Fibers, which were to be later absorbed by COVERS. During the people entrapment, of their costumes, enters the arena Ryūko Matoi with Aikurō Mikisugi and Tsumugu Kinagase. When Ragyō was speaking to Ryūko, Satsuki then stabs Ragyō from the behind with Bakuzan and hurls her into a statue that bears the school insignia, thus betraying her. Satsuki then announces the rebellion and reveals that the Honnōji Academy and its students are a force designed to fight against COVERS.

Invasion
The People are freed, the Elite Four battle against Nui, and Satsuki confesses to Ragyō that the whole truth about COVERS and Life Fibers were told by her father. When Satsuki lunge for the final blow, Rei comes into defense for Ragyō, which Satsuki rejects a single blow. This, however, gives time for Ragyō to release Life Fiber threads to controlling the minds of the academy students and including Ryūko. Satsuki then was attacked by the mind-controlled Ryūko but Ryūko manage to break free from the power of Ragyō, and then moves to attack Ragyō but was ultimately interrupted. Above in the sky, there spawned hundreds of COVERS. Ragyō ten confesses that her body has converted to Life Fibers and can't be killed. Satsuki then battles Ragyō but losses and was striped out of Junketsu, which Ragyō then takes for herself and attacks Ryūko, pulls out her heart, reveals that Ryūko is also infused with Life Fibers. Ragyō then commented that she is her daughter.

Aftermath
The COVERS proceeds to capturing people and absorb their body. Ryūko cut the hand of Ragyō that possesses her heart, in which the heart slips inside Ryūko and Ragyō attached her disconnected hand. Ryūko the processes to attach Ragyō but was surrouded by both Ragyō and Nui. The battle was interrupted by an then-conscious Satsuki, who last push was to presses an button, which causes the explosion of the entire Academy.