It stored numerous collections of the Cloistered Emperor Goshirakawa, who stood in the center of entertainment such as production of various emakimono (illustrated scroll) and collection of imayo (a popular style of song during the Heian period).
ここには、多くの絵巻物の制作や今様の蒐集など芸能の中心に立ち続けた後白河法皇の膨大なコレクションも納められていた。