Ohayô! Supanku

Spank is a dog whose owner went missing on the high seas. While awaiting his return he meets Aiko Morimura, a student, whose father went also missing and who lives with her uncle, Mr Fujinami. In the course of the anime Spank begins to lighten up her gloomy mood as he is a clumsy and merry dog with lots of heart. (en.wikipedia.org)