The metal band 403 (pronounced “Yonmarusan”) has been active since 2000 and is known for their unique blend of power metal and symphonic elements. Originating from Tochigi. Their style combines high-speed metal with orchestral touches and choral arrangements, setting them apart within the metal genre. The lineup includes multi-instrumentalist 403 (on piano, guitar, bass, and vocals), Hatanaka on vocals, Robert Legacy on guitar, and 1024 on vocals.