major voice acting role. Saitō would go on to perform over three hundred anime voice roles in the following two decades. Kokoro and the comparoid June make appearances in Nobuyuki Takagi's 2003 manga Pure Marionation, set eight years after Kokoro Library. Cast Main characters Kokoro , aged 10, is the youngest of the three sisters, and calls herself "the girl with the same name as the library". She wears a red librarian uniform. She is positive, hardworking, and innocent. She loves to read books, and her favourite author is Himemiya Kirin. Her dream is to become a fully-fledged librarian. Her special skill is to make rainbows with her watering can. She is happy to be surrounded by her sisters. Her room is decorated with cats. She likes French toast, pudding, and cake, but dislikes celery and cauliflower. Her birthday is March 18th. She does not use a surname in the series, introducing herself as "Kokoro from Kokoro Library". Aruto , aged 15, is the middle daughter. She wears a black uniform, and wears glasses. She is strong-willed, a good cook, and has the special ability to sleep anywhere. She secretly writes novels under the pen name Himemiya Kirin, Kokoro's favourite author. Because she stays up late to write, she often takes naps in the morning. Her hobbies include reading and cooking, and her favourite foods are Chinese cooking and cake. Her birthday is December 19th. Iina , aged 17, is the eldest of the three sisters. She wears a blue uniform. Her hobby is photography, and she takes many photographs of her sisters, especially Kokoro, and she has many photos of her on her wall. She is highly protective of Kokoro, and has trouble coping when Kokoro is away for a long time. She even sleeps with Kokoro plushies. She drives a redecorated military surplus white Schwimmwagen with the license plate "556" (goroawase for "ko-ko-ro"). Surprisingly, she is good with computers. She likes noodles, sweet things, and Assam milk tea. Her birthday is October 2nd. The names of the three sisters together form the phrase "kokoro aru to ii na," meaning "it's good to have a heart". In the anime, it is revealed that the sisters were intentionally given these names by their parents in order to spell out this motto. This phrase appears as a subtitle on the cover of the manga, but is not immediately revealed in the