Hotaru Futaba

Hotaru Futaba (双葉 ほたる, Futaba Hotaru) is the daughter of a family of martial artists, but is not very fond of violence. She never wants to hurt others, which is the probable reason why her father taught her the lighter side of Chinese Kenpo; the Juu-kei style, which suits her easygoing personality. However, after her mother's death, both her father and her older brother were missing from her home.

Personality
Hotaru is a calm and joyful girl, who was shaken by being abandoned by her family. She still has high hopes that her family will be united again.

Although it is highly implied that Gato is possibly her missing brother, nothing officially states that this claim is true. Itokatsu seems to warm up to him and Hotaru declares that he is based on woman's intuition.