Let Your Bastard Join the Army, and You Kill Barbarians and Become the God of War

Let's talk about the conclusion first: I just want to be an ordinary bastard, how can I become the God of War? First day in the army—— Me: Master, I really can't do it anymore. Xue Rengui: I walked on horseback for three hours. Me:…… Going to the battlefield on the third day—— Me: Master, these barbarians don't seem to be very good at it. Xue Rengui: That's because you are too fierce. I:? ? ? Defending the city on the seventh day—— Manzi: Go ahead! Me: (one shot at a time) Manzi: ... Forget it, retreat. Half a month later—— Li Langzhong: Captain Jia, how many enemies have you killed? Me: No, it's quite a lot anyway. Mr. Li:...... One month later—— General Niu: Young man, are you from Rongguo Mansion? Me: He is a bastard. General Niu: Are all concubines so fierce? Me: (scratching my head) Maybe the master taught me well? Three months later—— Barbarian Khan: Who is that person? Spy: Jia Huan, the concubine of Rongguo Mansion. Barbarian Khan: No, why is the bastard so fierce? ! Half a year later—— Imperial decree: Confer Jia Huan the title of Marquis of Zhenbei. Rong Guofu:! ! ! Jia Zheng: Huan'er, come back. Me: (sneering) Why didn't you think about today when you drove me away? Everyone: How could a bastard be named the God of War? Me: Maybe because... I have a good master? Xue Rengui: Stop flattering me, you are more ruthless than me.