Lin Changqing, a modern-day corporate wage slave, unexpectedly transmigrates to the Guangwu Continent, a world overrun by demons and monsters. To his dismay, he starts out as a refugee conscripted to defend a city, nothing more than expendable cannon fodder. At the critical moment when demonic forces besiege the city and its survival hangs in the balance, he awakens a sign-in system and immediately obtains the peak cultivation of a Ninth-Rank Martial Saint, the pinnacle of combat power in this world. From that moment on, the tables are turned. Taking on the alias Venerable Changqing, Lin Changqing sweeps across the battlefield with invincible might. With a single thought, he annihilates tens of thousands of monsters; with a flying sword, he beheads a Demon King fifty miles away; and with his bare hands, he tears through space to travel tens of thousands of miles in an instant. Thus begins the exhilarating legend of an invincible Martial Saint dominating a chaotic world.