Shiro is a golden retriever is from a story called "Kubiwa -Shōnen to Inu" (Collar -The Boy and the Dog) featured in the manga Ginga no Inutachi. The story tells of a 13 year old boy named, Shuichi Takumasta, whose family owns the golden retriever, Shiro. The boy loved his dog and the dog loved him just as much, but because of school and other activities Shuichi lost interest in Shiro whom was left alone tied up in the back yard for long periods of time. When the dog was allowed inside of the house it behaved badly and was often struck by the boy's parents or hit with a broom. The dog would bark and scratch at the sliding door, wanting to get inside. Also because the dog was neglected Shiro never learned to walk on leash properly and became a problem to the family.