Before the introduction of <Summoners War: Sky Arena>...
A war broke out in the kingdom of Efrana on the continent
where Garen Forest and Mt. Siz are located.
You must protect your kingdom and manors
from the Kadugan forces and drive out
Kadugan who is ceaselessly war-driven.
|Year 819 (Post Rift)||Outbreak of the hundred years' war over Mana Crystals, the great source of power|
|Year 852 (Post Rift)||Efrana Kingdom torn in pieces due to the Efrana War|
|Year 855 (Post Rift)||Kadugan conquers most of Efrana in three years with his accumulated power|