Traveling Through the Warring States Period, I Dominated the World by Killing My Enemies

Modern young man Zhou Xuanyun was playing a game about the Warring States Period. When he was having fun, he was struck alive by a sudden thunder and lightning. He unexpectedly came to the Warring States Period, where he became the weakest Korean soldier among the Seven Heroes of the Warring States Period. Moreover, at this time, Qin State and South Korea were at war, and I already wanted to die. After all, Qin State's fight against South Korea was not the same as playing. Just when I was desperate, the system prompt suddenly rang: Kill the enemy and become stronger. System activation!