The Abyss of Sin held Yun Heng for three hundred years.
When the seal broke ahead of schedule, he and Lingyue, the last disciple of the Heartguard Studio, returned to the world, only to discover that the Heartguard Studio had vanished from the history books. Their old friend Ye Lingdao, who had lived three hundred years ago, had also died in a sealed chamber protected by all seven layers of its restrictions. No one had entered or left, yet the corpse came back to life for a single moment every midnight, and its shadow had six arms, just like Yun Heng.
To clear his name and recover the truth that had been erased, Yun Heng joined forces with Lingyue and criminal investigator Mo Sun to investigate a series of impossible murders. But every clue eventually pointed to the “Tombstone-Free Project” from three hundred years ago, and Yun Heng himself was the person erased from that old case.
As every forgotten crime returns, what awaits him at the end of these murders: the real culprit, or himself?
