Ryūko Matoi

Ryūko has a relatively simple personality: fierce and stubborn. She fears little - she directly and disrespectfully addresses Satsuki Kiryūin, 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 in Episode 3. Whilst she is not afraid of fighting to her death, she is somewhat self-conscious.

Ryūko 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 and Episode 7. 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 in Episode 1 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. Her stubbornness was taken up to ridiculous levels when she managed to free herself from Ragyō's mind control by merely punching herself. This same episode, however, has one of few demonstrations of shock on her part, when Ragyō defeats Satsuki, rips out Ryūko's heart and reveals to be her mother.

When Ryūko is brainwashed after being forced to put on Junketsu by Ragyō, her personality changes to be wild and sadistic, destroying everything around her without reason. After she is freed, she goes back to her usual personality but is somewhat calmer and more mature. She also makes peace with Satsuki and is able to fight with her as a comrade but is still having trouble recognizing her as her sister. Although, after Satsuki catches her when she is falling back to earth and welcomes her home warmly, Ryūko replies by calling her "sis."