Also known as: 宇田川あこ
The drummer of the band Roselia in BanG Dream!. She is a third-year middle schooler with Red Eyes, curly purple Twintails (sometimes curly enough to count as Twin Drills instead), and Chuunibyou tendencies. Her birthday is July 3rd.
Udagawa Tomoe is her older sister.
Voiced by Sakuragawa Megu