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Life Fibers (生命戦維 in Japanese) are a race of extraterrestrial parasites that are responsible for the advancement of humankind, and they also contributed to the use of clothes and the need to cover oneself. The Life Fibers are a major plot point in the 2013 anime Kill La Kill, and are used by the antagonist of the series Ragyo Kiryuin as a means of dominating the world.


Long ago, Life Fibers would attach to its host in order to get nutrients, but eventually evolved to cover up the host's entire body. Later on, the Life  Fibers went into a dormant state, and were later reawakened by Ragyo. Ragyo planned to use them in her plans on feeding humanity to them, and she gave up her humanity as well, and became very devoted to the Original Life Fiber, in which the other Life Fibers most likely spawned from.


           Kill la Kill Villains

REVOCS Corporation
Ragyō Kiryūin | Nui Harime | Rei Hōōmaru | Takiji Kuroido

Honnoji Academy
Satsuki Kiryūin | Ira Gamagōri | Uzu Sanageyama | Nonon Jakuzure | Hōka Inumuta | Shirō Iori | Takaharu Fukuroda | Omiko Hakodate | Kagesaburō Kagerō | Maimu Okurahama | Masuyo Watari | Ryōsuke Todoroki | Aizenbō Fuguhara | Jack Naitō | Tōki Brothers | Kusatao Uwabami | Tatamu Otte | Maiko Ōgure

Life Fibers
Original Life Fiber | Junketsu | COVERS

Kaneo Takarada | Kyūji Ōbayashi | Kenta Sakuramiya | Jirō Suzaku | Saburō Seiryū | Shirō Byakko | Tarō Genbu | Hōjō | Imagawa