When twenty-five-year-old Takako's boyfriend reveals he's marrying someone else, she reluctantly accepts her eccentric uncle Satoru's offer to live rent-free in the tiny room above his shop.

Hidden in Jimbocho, Tokyo, the Morisaki Bookshop is a booklover's paradise. On a quiet corner in an old wooden building, the shop is filled with hundreds of second-hand books. It is Satoru's pride and joy, and he has devoted his life to the bookshop since his wife left him five years earlier.