Before the Overgrown Oak was created, animals of the Sleeping Valley fought and did not resolve disputes without violence. Three mages helped create the tree which now brings all creatures together; without it, all hope is lost.

In Lumi's dreams, she enters the Cloud Realm where she is guided by mages who help her gain powers to stop the evil from destroying the Sleeping Valley's peace. It is up to Lumi along with her friends to heal the tree that has protected their home for generations.