She's a truant high school student with pyromaniacal tendencies, she's apparently Naota's brother Tasuku's girlfriend, but appears to have entered into some sort of relationship with Naota since his brother left Japan. She also smokes a lot and spends most of her time under a bridge. She is often seen with a camera, and always smokes a worn cigarette with "Never Knows Best" written onto the paper. She also plays the bass, which is a Rickenbacker 4003SW bass guitar in a walnut finish.
