Ruby is an Aurora Girl who makes northern lights together with her kind. She is banished from Aurora no kuni (Aurora Land) because of her selfishness and horrible behaviour, and she is told to find a stone called Aurora no Shizuku that can grant three wishes. That way she will be forgiven. Ruby meets Anpanman and lies to him that she needs the stone to rescue her land. But when Baikinman is also interested in getting the three wishes, Ruby is torn between the choice of helping her new friends or being able to return to Aurora no kuni.
Há muitos anos que tudo anda bem na residência Tendo quando de repente, uma menina chinesa chamada Lychee aparece, para se vingar de Happosai por causa de uma promessa quebrada no seu nascimento. As coisas pioram quando Kirin junto com os Sete Deuses da Sorte aparecem e sequestram Akane para tomar como sua esposa. Ranma e sua turma devem viajar para Nekonron, na China, e salvar Akane de se casar com Kirin.
