Lord of the Undead: Give Frostmourne at the Start

I am a natural disaster. The awakened Baimon, who was reincarnated as the Death Lord, had only one castle and one cemetery. Facing the influx of adventurers and human warriors, he will use the cold wind and blood to tell who is the real master of this place. The wind and clouds are rising, and the Death Lord returns again to stir up the storm and unify the world. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.