He transmigrated to the chaotic late Han dynasty, where Qin Ao arrived in the war-torn lands of Liaoxi. At the brink of death, he activated an Infinite Upgrade System. With the Overlord Engine and his Heartbeat Strangulation Domain, he slaughtered bands of raiders alone, recruited Zhao Yun, and forged the Scarlet-Blood Demon Cavalry. Wherever the red-armored tide swept, thirty thousand northern barbarians were wiped out, and Xuantu Commandery fell into his hands. He fought slaughter with slaughter and blood with blood, establishing an iron-fisted order on the late Han frontier and striking terror into the foreign tribes.