Li Ji, a grudge who is looking for the mystery of his life experience, and his strange friend Yun Lou who is keen on collecting bones. Occasionally getting clues to the mystery of their life experience, the two set out again, peeking into the unknown past from pieces of bones, seeing through the unexplainable grievances and resentments, and uncovering the secrets of the turbulent changes in the three realms.
Purpose: By pursuing the mystery of one's life experience, stories involving happiness or sadness are involved.