Boku to Chourui Hyakkaten

Haru Shirosaki, nine years old, is a 4th year elementary school student with no hopes or dreams for the future. One day, he visits the "Bird Department Store," a specialty store that has a collection of birds from all over the world. What will an encounter with Enji Kochikawa, the store's manager who's full of hopes and dreams, bring about...!?

(Source: Shinchosha, translated)