Raise A Suilen (stylized as RAISE A SUILEN), sometimes referred to as RAS, is a Japanese all-female rock band that is part of Bushiroad's media franchise BanG Dream!. Formed in 2018, the group's members portray fictional characters in the project's anime series and mobile game BanG Dream! Girls Band Party! in addition to performing their characters' respective instruments in live concerts. Raise A Suilen consists of (vocals, bass guitar), Riko Kohara (guitar), (drums), (keyboards, vocals), and Risa Tsumugi (DJ). In-universe, the band is represented by Rei Wakana (Raychell), Rokka Asahi (Kohara), Chiyu Tamade (Tsumugi), Masuki Satō (Natsume), and Reona Nyūbara (Kurachi). Of the seven bands in BanG Dream!, Raise A Suilen is one of four whose members perform their own music. The group has produced seven singles and their first album was released on August 19, 2020.