Birthdate: August 5
Zodiac: Leo
Height: 163 cm
Weight: 50 kg
Blood type: B
Favorite flower: sunflower

Machi is a 14-year-old middle school senior. She is the Yuihama Middle School Student Council President. Machi is also Tami's best friend and classmate. She is shown to be act tough and serious, and has a strict and disciplinistic attitude but is weak against Tami.

She has a rocky relationship with her older sister, Sari, who is a teacher at their school, and is against the idea of Sari becoming the advisor of the Yosakoi Club.