Kill La Kill
Honnouji Academy (本能字学園, Honnōji Gakuen) is a fictional high school situated in Tokyo Bay, Japan on the island of Honnō City. The school is dominated by its fearsome student council led by Satsuki Kiryuin. Its students wear Goku Uniforms (極制服, Gokuseifuku, from gokusei (極製?, "finest quality") + seifuku (制服?, "school uniform")) which give their wearers superhuman abilities because they are constructed with a special material known as Life Fibers (生命戦維, Seimei Sen'i, lit. "Life Battle-Fibers"). Vagrant transfer student Ryuko Matoi, who wields a scissor-shaped longsword that can cut Goku Uniforms, challenges the council as she searches for her father's killer. Although she is initially easily defeated, she finds a sentient sailor uniform that she names Senketsu, a Kamui (神衣, lit. "Godrobe") which is completely made of Life Fibers and transforms her so that she can face Kiryuin and her trials and obstacles. She is befriended by her hyperactive classmate Mako Mankanshoku and lives with her family.
When Satsuki reorganizes the allocation of Goku Uniforms through a battle royal and king-of-the-hill event known as Naturals Election, Ryuko faces the members of Satsuki's Elite Four, who wear powerful Three-Star Goku Uniforms, in a series of duels. Her final fight is interrupted by Nui Harime, the wielder of the other Scissor Blade and the murderer of Ryuko's father. In the ensuing fight, Ryuko transforms into an uncontrollable monster.
With the Tri-City Schools Raid, Satsuki annexes the major schools in the other regions of Japan, and quashes Nudist Beach (ヌーディスト・ビーチ, Nūdisuto Bīchi), a paramilitary organization led by Ryuko's homeroom teacher Aikuro Mikisugi. She arranges for a festival that will host her mother Ragyo, the academy's director and the CEO of REVOCS Corporation (REVOCSコーポレーション, Ribokkusu Kōporēshon), a clothing manufacturer that has dominated the worldwide market. Mikisugi reveals that the Life Fibers, which have been woven into all REVOCS clothing, are actually alien parasites that consume their wearers. When they devour the festival audience, Satsuki turns on her mother, revealing her end goal has always been destroying Ragyo, but the rebellion is short-lived as Ragyo has fused with the Life Fibers to attain tremendous power. Ragyo recognizes Ryuko as her own daughter and Satsuki's younger sister, who survived the termination of a Life Fiber experiment and was raised in secrecy by Ragyo's missing husband Isshin Matoi.
A month later, Ragyo and the Life Fibers have devastated Japan and have captured Satsuki, leaving the Elite Four without Goku Uniforms and forced to hide out with Ryuko and the others at Nudist Beach. When they rescue Satsuki, Ragyo captures and brainwashes Ryuko into fighting her. After Ryuko frees herself, she and Satsuki challenge Ragyo, who plans to use a space satellite to command all Life Fibers to consume their human hosts and detonate the Earth in order to propagate the Life Fibers throughout the universe. After taking down the satellite transmitter and blasting the cocoon that houses the Original Life Fiber, Ragyo absorbs Nui and flies in to space to manually activate the satellite, but Ryuko chases Ragyo into space and defeats her, causing the Life Fiber clothes to perish. Following the battle, Senketsu sacrifices himself and burns up on atmospheric re-entry to return Ryuko to Earth.
In a follow-up OVA episode, Ragyo's secretary Rei Hououmaru disrupts Honnouji Academy's graduation ceremony, using leftover Life Fibers to create doppelgängers of Satsuki and the Elite Four. However, they are defeated by Ryuko, the real Elite Four, and Nudist Beach, and Satsuki convinces Rei to abandon her struggle. Honnouji Academy is shut down during the sinking of Honnō City and everyone leaves to live out normal lives.
brainwashing, revenge, flashback