Yuji Kasai started to play guitar when he was 13 years old. He also started writing his own songs at that time. Yuji Kasai has a keen sense of songwriting and always tries to keep his audience alert. In 2007 he joined Wave Reader Productions and started to record his 1st rock album with Remi Desroques.

１３歳の時にギターを弾き始め、その頃から作曲もし始める。曲を作るにあたり常に聴衆の立場を忘れず、そして鋭い作曲センスの持ち主である。２００７年にレミ デロックと出会い、Wave Reader Productionsに所属。そしてアルバムレコーディング開始。