Thanks to his job, Anon E. Mouse became tired and frustrated. His usual life was a living nightmare. He needed some kind of therapy which can make him calm and relaxed. But he didn't need a therapy. The only thing that he needed was a pet. A cute, smart, beautiful and lovable pet.

In the petshop he couldn't choose, beacuse there was many kind of pet. Parrots, lizards, fish etc. Under the tour in the petshop he suddenly looked at an interesting aquarium and its content. In that aquarium he found the perfect pet. A tiny seapony called Princess Skystar.