In the land of Alpa, an ever growing world, the five strongest races have gathered inside the World Tree to mass summon humans. Three hundred years ago, the gods had summoned five humans that were tasked with eliminating the demonic emperor. The god race was highly successful, but they were unable to control the aftermath of the demonic emperors death. The humans, once five, have now dwindled down to two. One living as an undead, the other living on borrowed time. With the human heroes completely out of commission, they needed more.  Together, the five races had decided to summon the entirety of the human race, not knowing how many or what their goals are. The gods, the elves, the merfolk, the dwarves, and the dragons had decided to split up the humans in their five nations and train them to become warriors capable of fighting for them. To fight against the blood of the ancients, the cursed blood of the demonic emperor. The emperors blood had transformed the local wildlife and beasts into horrible monsters. The monsters had ravaged the world and pushed back the territories of the five races into a corner. This summoning was their only chance, the choice between life or death. The sacrifice of their people to summon the humans. One representative of each race was chosen to be a sacrifice to connect the humans to this world.