In the world, spiritual bones are divided into four grades.
Grade one: Heavenly Spiritual Bone.
Grade two: Golden Spiritual Bone.
Grade three: Mysterious Spiritual Bone.
Grade four: White Spiritual Bone.
All others are considered Mortal Bones, with no chance of cultivation.
A mere Mortal Bone, Xu Taiping, vows to prove to the world of cultivation that even a Mortal Bone can slay demons, eradicate evil, and ascend to immortality!