Spank) is a Japanese shōjo manga written by Shun'ichi Yukimuro and drawn by Shizue Takanashi.

[1] Spank (voiced by Noriko Tsukase), the main character and regular protagonist, is a dog whose owner went missing on the high seas.

One day he meets Aiko Morimura (voiced by Mari Okamoto), a junior high school student, whose father also went missing on a yacht tour ten years ago.

She has recently lost her pet dog, Papi, a good-bye present from her mother, in a car accident, leaving her totally devastated.

In the course of the anime, Spank begins to lighten up her gloomy mood as he is a clumsy, merry, big-hearted dog.