Whirlwind Knight follows the virulent actions of a bunch of thugs known as The Golden Dragon Gang. Desperate to get their hands on both halves of a divided treasure map - with each segment owned by one of two brothers - The Golden Dragons invade the siblings home, slaying them mercilessly. They nevertheless fail to anticipate the ruthless vengeance of the third brother, who turns up wielding massive blades and slicing and dicing his way through the baddies.