You're part mouse and live on an island that once was peaceful but gigantic weasel came on the island that were led by the white weasel: Nero. Nero ordered every weasel to remove every single mouse from the island and used a lot of tricks to try that, you have to save your island which is not an easy task because half of the other mice people already gave up. You'll have to talk them out of it but lucky for you because 1-A came to help as well after your brother went to Japan, begging for their help