Ryuko Matoi

Ryuko is a pale female of medium height. She has blue-black hair of medium length with a single left-swept red highlight on her bangs as well as blue eyes, which have peculiar gear-like pupils with eight grooves around the edges. She has massive breast and a large ass and thighs.

She wears Senketsu, a living navy blue sailor uniform. Her shirt (Senketsu's upper jaw) is a dark navy sailor uniform with mid-length sleeves that bares her midriff. The collar has red stripes and is tied by a multicolored scarf that also serves as Senketsu's left eye. His right eye is covered by a black "eyepatch" with an X-shaped mark over it (perhaps emulating her father's right eyepatch). Her skirt (Senketsu's lower jaw) is held up by suspenders attached to a belt. Aikurō Mikisugi later provides her with a Seki Tekkō ("Red Gauntlet in English"), a red, fingerless, left-handed glove with a built-in syringe designed for Ryuko to conveniently draw blood and feed it to Senketsu. She also wears white sneakers and white and blue stripped panties.

Ryuko's appearance changes further when using Life Fiber Synchronize with Senketsu. Her hair becomes even more feathery and is accented with vibrant red undertones and horn-like clips. Senketsu himself also undergoes a significant change in appearance after Synchronization; his "eyes" extend into wing-shaped crests jutting out from Ryuko's shoulders and his upper and lower parts transform into a black, skimpy suit of armor with red stripes. The top section of the armor covers Ryuko's neck, lower-jaw, arms, and upper breasts, and possesses a red, triangular ventilation grill centered on Ryuko's upper back. The top armor piece is connected to her skirt by three red garter belt/suspenders (two in front, one in back), leaving everything between the underside of her breasts and her waist exposed. Her legs are covered with thigh-high boots with heels.

Ryuko has a relatively simple personality: fierce and stubborn. She fears little - she directly and disrespectfully addresses Satsuki Kiryuin, demanding that her questions be answered, and when she fights Takaharu Fukuroda even though she is clearly overpowered. Later on, she is shown to be quite embarrassed when forced to fight in Senketsu's very revealing alternate form, though she overcomes her embarrassment. Whilst she is not afraid of fighting to her death, she is somewhat self-conscious.

Ryuko is generally confident once she adjusts to using Senketsu. She's willing to try all sorts of unconventional and inventive methods to defeat opponents, seen in her battles with the Elite Four. Her confidence does occasionally backfire, as shown when she underestimates Uzu shortly after his eyes are sewn shut.

Even though most of the time she is seen stubborn and fierce, sometimes she can be calm, polite, content and warmly flattered. This is mostly seen when eating with the Mankanshoku family. She admires the way Mako's mother makes food and has kind manners. She later tells Senketsu how fun dinner was with them because of how her mother died when she was young and her dad sent her to a boarding school, never knowing how a family dinner was like. Her flattery is highlighted when Mataro tried to steal Ryuko's wallet and mug her. She was cool with the intention of fighting, criticizing how street punking doesn't work for him and how goofy his gang was. After defeating them, she lets it slide by not fighting people who can't fight back. This is also seen with most opponents she faces when she often states the obvious. She shows fierce determination in finding her father's killer.

Superhuman Strength: Ryuko's strength far surpasses that of an ordinary human. From the start, Ryuko was able to take on multiple One-Star students by herself without the need to wear Senketsu. She became much stronger throughout the series, both on her own and in her synchronization with Senketsu.

Scissor Blade – Ryuko's signature weapon is one half of a giant pair of scissors, which she wields as a one-handed, single-edged longsword. The blade is capable of cutting Life Fibers, which are otherwise indestructible.

Superhuman Regeneration: Because of her infusion with Life Fibers, Ryuko can regenerate her body to heal injuries that would kill an ordinary human.

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