ASTERISM is a next generation three-piece heavy metal band consisting of HAL-CA (Gt), MIYU (Ba), and MIO (Dr)

Formed in their early teens by three people who met in a music contest in 2014, the group made its major debut on SME Records in 2023.

With their exceptional playing techniques and passionate performances on stage, they have performed at major metal festivals such as Knotfest Japan and FOX_FEST, while expanding their activities not only in Japan but also on a global scale.
They have performed in the United States, France, Korea, China, Saudi Arabia, Thailand, Singapore, India, and other countries, generating many local fans.

ASTERISM aims for further global expansion with a new genre "MASS METAL" which means "a metal that reaches, resonates, and is loved by the masses", based on their meticulously composed music and their unique pop sensibilities.