In a certain corner of the world, there exists such a continent: Yuande Continent. No one in this corner knows its secrets, let alone its existence.
He and she met as if they were destined to meet on this continent. They fought all over the world, walking from one country to another, leaving their shadows on many people.
Mysterious Taoist priests, strange books, strange people... What kind of secrets exist? When will the secret of the days when Yuandoku Continent faces destruction be revealed...