The deepest part of the Frost Wasteland has been shrouded in an endless mist since the birth of the continent. The bone chilling wind has been blowing for thousands of years, but it has not been able to disperse the mist.

The "Valhalla",  one of the three mysterious regions of the continent, stands quietly in the depths of the mist, waiting for something. Legend tells that this is the home of the dead, the end of life, and the end of all origins! The Snow Wolf Clan has been guarding this place for generations, each of whom is a natural predator, wielding huge swords and axes, and filled with inexplicable enthusiasm for battle. Their claws, shining with cold light, can easily tear open the enemy's throat. The special individual of the Snow Wolf Clan is called the "Mad Wolf" which is a nightmare for their enemy. They awaken their wild blood, extremely develop their bodies, and possess incredible power! Even evolving into another advanced form - "Berserker"!