Ruby, a member of the Aurora Kind responsible for creating the northern lights, faces exile from Aurora Land due to her selfish and unpleasant ways. In order to receive forgiveness, she must locate the Aurora no Shizuku stone that has the ability to grant three wishes. While seeking the stone, Ruby deceives fellow character Anpanman by falsely claiming it will save her homeland. However, when Baikinman also expresses interest in the wishes, Ruby must make a difficult decision between assisting her newfound comrades and returning to Aurora Land.