Tarumi

Shimamura's best friend from elementary school. They used to call each other "Shima-chan" and "Taru-chan", but they drifted apart after going to different middle schools. There is a rumor that she was a "delinquent" because she skipped classes and wandered around during middle school. Compared to Adachi, she is not afraid of Shimamura and takes active actions, and has a broad perspective, but she does not understand Shimamura's current personality.