The precocious young Komachi is Kirara's little sister. Upon hearing that her older sister would be journeying into the city to seek out samurai warriors, Komachi virtually forces her inclusion into the search party. She is a bundle of energy. She's the kind to never be afraid to ask any question to any person. She is blunt in a charming, childish way. Her favorite samurai is Kikuchiyo, whom she calls"Kiku", and always rides around on his shoulders, and she has a little sister attitude towards Katsushiro. Komachi is always writing letters to her friend Okara in Kanna village, keeping her up to date on everything that's going on.
After the final battle with Ukyo, Komachi becomes the new water priestess.