Transmigrated to Qin to Become a Fierce General

Liu Mingxuan accidentally transmigrates to the period when Qin conquered the six states, and in his mind he also gains a cultivation manual. Relying on that manual, he earns the reputation of Qin's number one fierce general during the war to unite the realm. As his status rises and rises, his mentality changes unknowingly as well. In the end, how far can Liu Mingxuan go?

This is an alternate-history novel. It is not orthodox historical fiction; any resemblance is purely coincidental.