Shizuku Tsukishima is a lively 14-year-old girl who likes to read and write poetry in her spare time. One evening, while looking at the checkout cards for her books, she sees that her library books are often borrowed by a boy named Seiji Amasawa. Curious, Shizuku decides to look for the boy who shares her love of literature. After encountering a strange cat on the train, Shizuku follows it and is eventually brought to a charming antique shop, where she learns about a cat figurine called "The Baron." Becoming interested in the shop, she unexpectedly finds Seiji, and the two quickly become friends. As she gets to know Seiji, Shizuku discovers that he has a dream he wishes to achieve, which causes her dismay since she is still unsure about her future and has not yet recognized her own talents. However, as her relationship with Seiji deepens, Shizuku becomes determined to work toward a goal. Guided by the whispers of her heart and inspiration from The Baron, she resolves to develop her own potential and dreams.