Yuji Sakurai is Tanaka Yukio's best friend. What they have in common is their love for rock music and in particular The Dying Breed. Saku's brother used to be a great drummer who inspired Saku to start working the drums him self. Saku surprises everyone when he said that he can play the drums exactly when Beck was looking for a new drummer. Saku is a self-educated drummer but despite that fact he shows incredible talent. Saku as Koyuki is a calm, good kid which feels the music with his heart. He as well is one of the "un-popular" kids at school. At least up until the band became famous. Yuji Sakurai is the drummer of Beck.