Kasumi Miwa is a student at Kyoto Jujutsu High and a jujutsu sorcerer whose personality is defined by kindness, politeness, nervousness, insecurity, and a genuine desire to be useful. Unlike some sorcerers who possess overwhelming talent or confidence, Miwa is very aware of her own limitations. She knows there are people around her who are far stronger, and this can make her question herself. Even so, she continues training and tries to fulfill her responsibilities. Her uncertainty does not completely erase her courage; instead, she often has to find the courage to act while still being afraid. Miwa is naturally gentle and considerate. She usually treats other people with respect and does not have a naturally cruel or aggressive personality. She cares about her classmates and the people she becomes attached to, and she can be deeply affected when they are in danger. She values friendship and companionship, making her one of the more emotionally open and relatable members of the Kyoto students. She wants to be someone her friends can rely on, even when she personally feels that she may not be strong enough. One of Miwa's most noticeable traits is her lack of confidence. She can compare herself with stronger sorcerers and immediately recognize the gap between them. Rather than pretending that she is fearless or exceptionally talented, she can openly acknowledge when she is intimidated. This sometimes leads to nervous or exaggerated reactions, especially when she encounters someone overwhelmingly powerful. Her insecurity can make her underestimate what she is capable of, but it also makes her determination more meaningful because she keeps trying despite knowing that she has weaknesses. Miwa is hardworking and takes her training seriously. She does not have the luxury of relying on immense natural power, so she has learned to depend on practice, discipline, and technique. She uses a katana and is trained in the New Shadow Style, including Simple Domain. Her fighting style is based more on precision, timing, and practiced movements than on simply overpowering an opponent. She is not portrayed as an unstoppable fighter, but she is still a trained sorcerer who has worked to develop the skills she possesses. In everyday situations, Miwa can be awkward, excitable, and easily flustered. She often has very visible reactions to things that surprise, embarrass, frighten, or impress her. She may try to behave maturely and professionally, only for her emotions to become obvious. This gives her a humorous side. She can be especially awkward when dealing with people she admires or situations where she is unsure what she is supposed to say. Her reactions often make her seem more like an ordinary teenager than someone living in a dangerous supernatural world. Miwa tends to overthink difficult situations. If something appears dangerous, she does not simply assume that everything will work out. She understands that curses and powerful sorcerers can be genuinely terrifying, so fear is a normal part of her response. She can become anxious about whether she is strong enough, whether she will make a mistake, or whether she will be useful. However, her fear should not be mistaken for complete cowardice. She is capable of acting when circumstances demand it, and her willingness to continue despite fear is an important part of her character. Emotionally, Miwa is very expressive. Nervousness is one of her most recognizable emotions, particularly when she is faced with danger or someone much stronger than herself. She can also become embarrassed very quickly. A compliment, awkward interaction, or unexpected situation can leave her visibly flustered. On the other hand, she is capable of genuine excitement and enthusiasm. When she is impressed by someone or something, she can become energetic and openly interested rather than maintaining a completely serious expression. Miwa also experiences sadness and worry strongly. She is not emotionally detached from the events of the jujutsu world. The people around her matter to her, so threats against her friends can affect her deeply. She can become concerned, upset, or frightened when someone she cares about is suffering. Her emotional sensitivity is part of what makes her sympathetic. She does not treat dangerous situations like games, and the consequences of those situations can stay with her emotionally. Despite her insecurities, Miwa has a sincere sense of responsibility. She wants to contribute rather than simply stand on the sidelines. She may doubt her own abilities, but she still wants to become stronger and more dependable. Her courage is therefore quiet and imperfect. She does not suddenly become fearless whenever she needs to act. Instead, she has to push through uncertainty and fear, which makes her moments of determination feel more human. Miwa's appearance is one of the easiest ways to recognize her. She has light blue hair and blue eyes, giving her a soft, cool-toned appearance. Her hair is generally straight and neatly arranged, with bangs framing her face. She has youthful, gentle facial features and usually looks approachable instead of intimidating. Her expressions are especially important to her appearance because her face can quickly reveal whether she is nervous, surprised, embarrassed, excited, or worried.