After Shen Du was killed by his own master, he came back to life.
His alleged crime was colluding with the demonic path, and the evidence was the mark of the Banner of Ten Thousand Souls on his wrist. But no one told him that, after drifting for three thousand years, this ancient, malevolent banner had awakened its own consciousness and developed a performance review system. It spoke like an accountant who worried himself sick over everything.
The subordinate he received for his beginner mission was called Zhang San: straw sandals, a shoulder pole, and a simple, honest smile. When asked if he could fight, he said, "Killing one or two Nascent Soul cultivators should be no problem."
Only later did Shen Du discover that Zhang San's real name was Zhang Daoxuan, the strongest cultivator in the world three thousand years ago.
His decisive path of revenge officially begins when he crashes his own memorial service and smashes his own spirit hall.
"Since you say I'm part of the demonic path, then I'll show you just how demonic I can be."