Da Qin: the God of War Who Grew up from a Soldier

Invincible+God of War+Dual System+Single Heroine Zhao Mu, Blue Star's top soldier, was accidentally reborn in the Warring States Period after his assassination mission failed. The storm was turbulent and the situation was shaken. Qin Shihuang Ying Zhengfen VI finally launched a war to unify the six countries in the 16th year of the Qin Shihuang. Facing the unfamiliar surrounding environment, Zhao Mu expressed that he just wanted to survive for the rest of his life, but suddenly a god-level selection system came to him, giving him two choices. [Option 1: Live a lifetime after time travel and die of old age in mediocrity. Reward title: Don't bully old age and poverty. [Option 2: Join the army and enter the Daqin Army Camp. Reward: God-level training system. He decisively chooses consequences. He obtained another system and became the first person to practice in the Warring States Period. With the blessing of the dual systems, Zhao Mu took off as a soldier, and finally became the famous God of War, unified the six countries, drove the Xiongnu southward, and made immortal achievements. Qin Shihuang: I have general Zhao Mu, so I can sit back and relax. Xiongnu: Losing our Qilian Mountains will deprive our animals of their ability to feed. [The introduction is a bit weak, please read the text.