"I do not want anything to happen that will make this a sad place!"<br />
— Hotaru —<br />
She is obsessed with the protection and harmony of every living creature on Earth, and refuses to attack monsters or let others attack, even when they are in danger. She is very attached to her Grunty, that she found abandoned and sick on a street corner. When forced into combat she defends herself using magical scrolls and tarot cards, immobilizing the enemy long enough for her to make an escape. She is very close to Shugo, who helped save her Grunty when it fell sick, as well as Sanjuro who acts as a sort of mentor to her. Due to her inexperience with Japanese she has the tendency to speak very formally and often misunderstands what others say, especially the fast-talking Mireille.