Flow

Japanese musical group; rock band (1998-)

Flow is a Japanese rock band formed in 1998 as a five-piece band made up of two vocalists, a guitarist, a bassist, and a drummer. They are signed to Sacra Music. As of November 2023, the band has released 40 singles and 12 studio albums. Their songs have been featured in the opening sequences of several anime and Japanese drama series.

from Wikipedia