Legends tell the story of Sacred Guardians called Shalen who tried to protect the lands from 4 beasts from another world by using the power of fire, metal, water, wood and earth. However, the beasts were too powerful even for them until a new power was found - the wind spell. The spirits of the beasts were sealed and peace was restored in the human world. Ever-since, people born with a special mark on their hand become Shalen who should protect everyone in the human world.
Lang Ming is a young blind boy who has an exceptional hearing. While he lives with his mother in Xiaoyanggang and tries to make money, his town is attacked by a demon and his mother disappears. Lang is ready to do everything in order to find her so he makes a deal with a strange girl, he later calls Little Goblin. This marks the beginning of an epic adventure which will change Lang Ming's life forever.