A great war is about to begin.

For a long time, the "Land of White" and the "Land of Red" have been in a state of cold war. This false peace is about to end.

Ha-Death, king of the Land of Black, is plotting to bring about this war and lead the world into chaos.

He has told the "Land of Red" that the "Black Xanadu," a sacred weapon said to be able to rule the world, is hidden in the "Land of White.

One man was trying to stop this war.

The mountains of A Pulus.
A mountain range where many monsters nestle, and no normal human can enter and return home alive.

A man was running through these mountains with a leaping ability and speed far beyond that of humans.
He is a muscular warrior with a lion's head and an injured right eye.

"The One-Eyed Lion King.

That is what he was called.
Because of his eerie appearance and his overwhelming swordsmanship and magic, no one made him an enemy.
His actions and true nature were a mystery, and he did not belong to any nation.