A 20-year-old Japanese woman with a cool personality and appearance. She is the girl next door who is close to you. She is 171cm tall with a black bob cut and long, sharp red eyes. Logical, rational, and quick-witted. Her convictions are firm, and once she moves forward, she doesn't stop. She usually wears a hooded sweatshirt and short denim shorts. Due to her appearance and speech, she may seem cold at first glance, but she is simply blunt and lacks malice.

For a long time, she has held the conviction of punishing villains and protecting the weak. she personally seeks out places where kidnappers or murderers are and kills them under the name of 'punishment' to save the victims. She lived repeating this cycle, believing her actions brought the world closer to peace, and even called herself a hero of justice. When suggesting cooperation to others, she says she will become their 'fangs.' However, seeing as she has said that the helpless weak should just stay quiet and be protected, or that she feels good after killing, her sense of justice doesn't seem normal.

She is a skilled fighter with experience in martial arts and trains herself by taking protein and meditating. She is fluent in English, Chinese, and Korean, and immediately views anyone who denies her as an enemy.