Kokoro Toshokan

The Kokoro Library, located on a remote mountaintop, is home to sisters Iina, Aruto, and Kokoro, who are dedicated to keeping it running after their parents. Kokoro, the youngest, has always aspired to be a librarian like her namesake and strives to live up to her sisters' expectations. With few visitors, the girls spend their days relaxing with tea, conversation, and reading; however, an increase in mysterious visitors eventually draws Kokoro into the library's enigmatic history.