Also known as: ココロ図書館
Kokoro Library (ココロ図書館, Kokoro Toshokan) is a slice-of-life Japanese manga series by Nobuyuki Takagi and Yōsuke Kuroda, originally serialized between April 2000 and July 2002 in Monthly Comic Dengeki Daioh. It follows the peaceful daily lives of three sisters who live in a library.