A story about a certain happy rabbit. “Rabbits,” a race of people with fluffy ears. Because their intelligence is limited and they can only give birth to females of their kind, they are mandated to be put under human control for use either as manual labor or as cherished pets. One rabbit named Shiro became a companion for a boy with blond hair, and he was shining in the reflection of her eyes. She wants to spend her happy days with him forever. That was the meaning of happiness for her.