The heroine of the manga. She is a quiet high school girl. Her parents were murdered by a mysterious organization, which she is targeting. When in battle, she wields a giant wrecking ball and chain through the power of her "Peppermint." It also changes her hair to a green glowing flow of energy. The Peppermint acts as a powerful stimulant when she becomes angered. The giant wrecking ball she wields is known as "Shiranuhi."