Ep. 17: Ryuko mengetahui asal-usul Senketsu sementara Satsuki memberontak terhadap rencana pengorbanan Life Fiber Ragyo.

After Mako and Senketsu dissolve the fight between Ryuko and Tsumugu, Aikuro explains to her how Tsumugu's sister, Kinue, died in a Life Fiber experiment, and that Senketsu was made with Ryuko's DNA, hence why only she can wear and communicate with him. Meanwhile, Honnouji Academy makes preparations for a cultural and sports festival to celebrate Ragyo visiting the school. Learning that this a cover up for a final experiment in which all of Honnouji City will be sacrificed to the Life Fibers, Ryuko and the others head for Honnouji, where the ceremony has begun. As Ragyo begins having the Life Fibers devouring everyone in the stadium, Ryuko and company arrive on the scene. Satsuki suddenly stabs Ragyo through the back and announces her rebellion against her and the Life Fibers, revealing this to be the purpose she has built Honnouji Academy for. (Source: Wikipedia)
Episode
- Ep. 13 · Ryuko kehilangan Senketsu dari Nui sementara Satsuki bersiap untuk serangan besar di beberapa kota.
- Ep. 14 · Ryuko memulihkan potongan Senketsu sambil bertarung melawan Empat Elite di Kansai.
- Ep. 15 · Satsuki bertarung melawan Kaneo Takarada di Osaka sementara Ryuko tiba untuk menghadapinya.
- Ep. 16 · Satsuki menyelenggarakan festival untuk mendistribusikan pakaian Life Fiber sementara Ryuko mempelajari kebenaran tentang Senketsu.
- Ep. 17 · Ryuko mengetahui asal-usul Senketsu sementara Satsuki memberontak terhadap rencana pengorbanan Life Fiber Ragyo.
- Ep. 18 · Ragyo mengungkapkan identitas aslinya dan mengalahkan Satsuki sementara Ryuko bertarung melawan Nui.
- Ep. 19 · Tetesan Hujan Terus Jatuh di Kepalaku
- Ep. 20 · Ryuko menghadapi Nui dan dipaksa mengenakan Junketsu sementara Satsuki melarikan diri dari penahanan.
- Ep. 21 · Satsuki dan Senketsu berjuang melawan Ryuko sementara Nui mengungkapkan bahwa Junketsu menyatu dengan Life Fibers-nya.