Far away from the world we live in, there is another world, the Immortal Medicine Realm... In the Immortal Medicine Realm, all the mortals practice spells...so the mortals here know some spells...there are twelve countries in the mortal world, respectively Ziguo, Chouguo, Yinguo, Maoguo, Chenguo, Siguo, Wuguo, Weiguo, Shenguo, Youguo, Xuguo, Haiguo...