The drummer of the band [[roselia_(bang_dream!)|Roselia]] in [i][[BanG Dream!]][/i]. She is a third-year middle schooler with [[red eyes]], curly [[purple_hair|purple]] [[twintails]] (sometimes curly enough to count as [[twin drills]] instead), and [[chuunibyou]] tendencies.

Her birthday is July 3rd, and her seiyuu is [[Sakuragawa Megu]]. Her older sister is [[Udagawa Tomoe]].
宇田川あこ