シリアル⇔NUMBER (Serial Number) is a japanese oshare kei band formed in April 2005, but became an official band later in June. The band consists of vocalist 佐々木　仁 (Sasaki Jin), guitarists MIHIRO and Kei-To and bassist イザ (Iza).
Like most oshare kei bands, シリアル⇔NUMBER also has bright and colorful costumes. Their looks tell about their style of music too, since their songs have happy pop/rock sound in them.

Read more about シリアル⇔NUMBER on Last.fm.