Удаґава Томое

Tomoe is a first-year student at Haneoka Girls' High School and Afterglow's drummer. She is the older sister of Ako. Tomoe is friends with the adults who work in the shopping district, and often attends her hometown's festivals to play the taiko drums. Outside of the band, she is also friends with Saaya and also works part-time at the fast food restaurant.

Tomoe is a fairly relaxed person, who never says anything bad about other people or holds grudges against them. She keeps the band from falling apart. She is idolized for her cool, but mature way of handling things.

Despite her mature, punk look, she is very caring towards others and is always there to lend support or a shoulder to cry on. While she is unable to understand Ako's behavior at times, she loves her sister and supports her. Tomoe is also shown to be hot-blooded and the type to rush into things head-first if she thinks someone she loves has been hurt. This has a tendency to backfire on her at times.

(Source: BanG Dream Wikia)