Bai Zhi, a modern young man with a roguish streak, accidentally transmigrates to the state of Zhao during the Warring States period and becomes a “poor boy” of unknown origins. With no one to rely on but his stunningly beautiful “older sister,” Bai Ling, he scrapes by with the martial arts she secretly teaches him and his own shameless nature. In Handan’s bustling streets, he is an “odd one” who can befriend the children of the powerful. He trades jokes and gets through hard times alongside Ying Zheng and Gao Jianli. No one knows that this troublemaker has a mysterious identity and was sent far away to Zhao to be raised. When Ying Zheng returns to Qin, Bai Zhi sets out with his own “rules for survival.” Using a modern man’s cunning and ruthlessness, he shakes up the Qin court. From being his childhood friends’ “troublemaking machine,” he becomes the “mad dog of Great Qin,” feared by the six states. Amid the blades of power and the mystery of his origins, he writes a Warring States legend woven from friendship and ambition!