Yasha (夜叉) is a japanese heavy metal (with some «modern metal» elements) band with guitarist Katsuhiko Fukushima who is Akira Takasaki's (Loudness, Lazy, JI‑ZO) first disciple. At the beggining band's releases was titled as «夜叉», later (in 2005, with «Zoku» album) they stared using romanji spelling — «Yasha».