Lost Kingdoms — The story begins with a substance known in the game as black mist. This fog is known for swallowing up people, cities, and other signs of civilization or life, and nothing can escape from within. In Lost Kingdoms, fog invades the land of Argville, home of the main character Katya, who is also the princess of this kingdom. The fog terrorized the earth for a long time, and Katya’s father, the king, finally decided to help deal with the deadly substance. However, since her father has not returned for some time, Katya soon leaves to find him.