Da Qin: from a Mountain Boy to an Immortal War God!

Traveling through the late Warring States period, Zhao Mang found that he had obtained the killing upgrade system. In other words, the more people he kills, the longer his life will be! The harder! From then on, everyone knew that there was a famous living king in the Qin army. He gets excited at the sight of blood and cuts down enemies when he sees them. Since then, good news has continued in Xianyang City! "Report!! Zhao Mang killed 30,000 Xiongnu in a trap!" "Report!! Zhao Mang led his troops to attack Jicheng! Present a letter of surrender!!!" "Report!! Zhao Mang occupied Maozi Kingdom and captured Princess Anastasia!" … Qin Shihuang was shocked! What kind of monster is this? ! How terrifying! Ps: The protagonist's father is someone else, so it's not a father-son relationship. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.