Started in 2001, Hiroshima techno pop unit. Ayaka nishiwaki's members (Oh-Chan), three (kashiyuka kashino Yuka), Omoto Sai Yukino (notchi). Initially Hiroshima local Idol "IGN. Kyun-including" as the debut. Moves based in Tokyo, Japan debut in "Perfume" in the name of "Donuts". Turning to the techno pop route since the celebrated producer Yasutaka Nakata of capsule. "Polyrhythm" in 2006, later won support from a broad range of topics and. More popular in foreign countries, organize trips to Asia, Europe and America, especially in live's popular. Also a number of award-winning.