[2] Passcode was formed in Osaka in 2013 and consists of the four vocalists Nao Minami, Kaede Takashima, Emily Arima and Hinako Ōgami.
[3] After releasing several singles and albums on smaller labels, the group signed to Universal Music Japan and released their second full-length album Zenith in 2017.
Yuna Imada contributed the harsh vocals before her retirement in 2021, with the job now handled by former Ladybaby member Emily Arima.
[citation needed] Kaede Takashima uses the harsh vocals in some tracks like "Taking You Out" and "Club Kids Never Die".
[4] The songs are written in Japanese language and contain English-language parts as well.