Warrior of Midgard who fight fiercely and died in the battlefield, their soul bought Valhalla by the Valkyries. They feast, fight, die and reborn every day until Ragnarok, the war that that end all thing.
They might look like normal man but don't let that fool you. They're battle maniac that fight and face death endlessly everyday, super strong and their skill is polished beyond the limit of living being.
Now before the Ragnarok come, The Allfather gave them special task. To join war with Thor against the Dark Lord, who might become a threat to Asgard in the end of day.