Global mutation, deep-sea Cthulhu invades reality, and the world is reshaped by a game called "Abyss". The higher the realm, the duller the emotions, and the strong will eventually become an indifferent god. Shen Yuan, the most inconspicuous bastard of the Shen family, awakened the causal vision on the eve of the family succession battle - he could see the threads of everyone's destiny. When his direct brother humiliated him in public, what Shen Yuan saw was the line of cause and effect above his head: three days later, he would be deposed for accepting bribes. When an ally made an alliance with him through blood, Shen Yuan saw the betrayal in the other's eyes that would come tonight. He didn't reveal it, he just waited quietly - because the causal vision told him: every betrayal would bury a deeper knife in his fate. The succession war begins, and a double betrayal within the alliance comes as expected. Everyone thought Shen Yuan was dead. But he just pressed the switch of cause and effect: one line makes the traitor's knife bite him back; one line makes the secret that the direct line has hidden for twenty years exposed to the public; and there is another line that leads to the real abyss of this game - those who abandon their emotions for power will eventually be swallowed by the cause and effect that they have cut off with their own hands.
