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.
도장에 라이치라는 의문의 소녀가 등장한다. 그녀는 여행중이었고, 우연치않게 그녀가 소지하고있던 족자가 아카네의 손에 들어가게된다. 그러자 칠복신 키린이 나타나 아카네를 신부감으로 오인해서 납치해가고, 란마와 친구들은 아카네를 되찾기 위해서 그들과 대적하러 중국으로 향하는데...
