Nudist Beach (ヌーディスト・ビーチ Nūdisuto Bīchi ) is a rebel organization founded by Isshin Matoi. Its goal is to thwart the plans of the Kiryūin conglomerate to subjugate the world to the will of the Life Fibers. As the name implies, its members work almost or completely naked most of the time.
The organization's base is situated in in Ōsaka. Along with the other schools of the Kansai region, Kaneo Takarada is a supporter of their cause. They were the ones who gave him his anti-Goku Uniform powered exoskeleton, the Dōtonbori Robo.
Near the end of the Tri-City Schools Raid Trip, a big part of the organizations facilities were destroyed. However, there still remains a part, which was not destroyed yet. While it looks ragged from the outside, it has a lot more inside. Fitting to the name, it is a beach.
As the rebels are opposed to Life Fibers, they almost never wear it themselves. Instead, they fight using practical means, such as subterfuge, sabotage, traps, and other guerrilla style tactics. They are shown to use technologically advanced Bipedal machines dubbed "DTR's".
In episode 21, when Senketsu is torn off of Satsuki, she is seen wearing Nudist Beach's Guerrilla uniform. Though it may just be a spare set of clothing she is wearing, it is assumed she is now a part of Nudist Beach.
- Isshin Matoi / Sōichirō Kiryūin - Founder, Deceased
- Aikurō Mikisugi - Leader
- Tsumugu Kinagase
- Satsuki Kiryūin
- Ira Gamagōri
- Uzu Sanageyama
- Nonon Jakuzure
- Hōka Inumuta
- Shirō Iori
- Mako Mankanshoku
- Mankanshoku Family - Back alley Doctors
|Allies||Ryūko Matoi • Senketsu • Mako Mankanshoku • Mankanshoku Family|
|Nudist Beach||Sōichirō Kiryūin • Aikurō Mikisugi • Tsumugu Kinagase • Kinue Kinagase|
|Student Council||Satsuki Kiryūin • Junketsu • Ira Gamagōri • Uzu Sanageyama • Nonon Jakuzure • Hōka Inumuta • Shirō Iori|
|Club Presidents||Takaharu Fukuroda • Omiko Hakodate • Maiko Ōgure • Aizenbō Fuguhara • Maimu Okurahama • Masuyo Watari • Jack Naitō • Tatamu Otte • Kagesaburō Kagerō • Kusanosuke Yaguruma • Kusatao Uwabami • Tōki Brothers • Ryōsuke Todoroki|
|Revocs Corp.||Ragyō Kiryūin • Nui Harime • Rei Hōōmaru|