Masamichi Ishikawa, leader of the rare groove band Q.A.S.B. and the Afrobeat band JariBu Afrobeat Arkestra, has collaborated with vocalists from Japan and abroad in this first solo project. The song "Unexpeted" was written and sung by Hiro-a-key, one of Japan's leading multi-singers known for his collaborations with a variety of artists in Japan and abroad.