PassCode, a Japanese idol group formed in 2013 in Osaka Prefecture, is known for their unique blend of metalcore, EDM, and J-Pop, categorized as "kawaii metal." Comprised of vocalists Nao Minami, Kaede Takashima, Yuna Imada, and Hinako Ōgami, PassCode released their indie studio debut All Is Vanity before achieving mainstream success with their major label sophomore effort, Virtual, which peaked at Number 43 in Japan. Their 2017 album Zenith, released through Universal Music Japan, marked a significant milestone for the group, producing two charting singles and reaching Number 20 on the Oricon charts. PassCode continued their success with subsequent releases like Clarity in 2019 and the chart-topping album Strive in 2021, featuring the hit single "Starry Sky."