Capsule is a Japanese eletronic duo formed by Yasutaka Nakata (co-producer, art director, responsible for all lyrics and music) and Toshiko Koshijima (vocals). They debuted in 2001, when their their first single was released by Yamaha Music. In 2003 Yasutaka created his own label Contemode and has produced other artists on the label.
On their first album, their sound was standard J-Pop, but with "Cutie Cinema Replay", they changed to Shibuya-kei sound, then later, slowly moved towards Electro Pop.