When physics whiz Gu Chen woke up, he had become Xiao Jinyun, a good-for-nothing with zero spiritual roots from the Xiao family of Qingyun City. Three thousand people roared with laughter at the spirit-testing platform, and his fiancée publicly handed him a letter breaking off their engagement. But beneath her sleeve, she secretly slipped him half a jade pendant, leaving only two words: "Stay alive." The whole city was waiting to see him kneel. No one knew that after he left, the spirit-testing instrument, which had not made a mistake in three hundred years, lit up on its own. It reached the ninth grid, then kept climbing. With his meridians blocked, he bypassed them with a parallel circuit. With no spiritual energy, lightning, raging fire, and his enemies' attacks all became his power sources. But why does the black iron ring fragment his mother left behind keep growing hot? And whom was she warning him to avoid when she said, "Stay alive"?