Berryz工房 (Berryz Koubou) is a seven-member Japanese idol group under the ハロー！プロジェクト (Hello! Project) umbrella . Formed in 2004 by producer and musician Tsunku, the group originally started with 8 Hello! Project Kids, but Maiha Ishimura (石村舞波) left the group in October 2005. Saki Shimizu (清水佐紀) is the oldest member and the captain of the group. To date Berryz Koubou have released five albums plus two mini-albums, one best album and 25 singles.