Sōtaisei Riron

The band consists of Etsuko Yakushimaru (lead vocals, producer, original instruments, artwork), Seiichi Nagai (guitar), Masaru Yoshida (bass), Motoki Yamaguchi (drums). The band is known for not revealing much about their private lives. Media coverage concerning the band is minimal and taking photos during live occasions is strictly forbidden. The band derives its influences from genres such as kayōkyoku, group sounds and post-rock. Song titles as well as lyrics often involve plays on words and pop culture references. According to guitarist Seiichi Nagai, the band composes most of their music together.