The Monarch My Father Follows Looks Like Lu Bu

I traveled to Canglan Continent, a world where four kingdoms competed for hegemony and the Dragon Seal. Good news: My dad is a great military commander. Bad news: The monarch my father serves looks like Lu Bu, he is brave and foolhardy, with big muscles and not much brains. It's broken, it's flat, anyway, my father + Lu Bu = numerically crushed, invincible in the world. How to lose this one? What, the relationship between my father and Lu Bu was instigated? The country is in danger? At this time, my breath is no longer concealed. I am a time traveler. "Come from the system", "..."; "Come from the plug-in", "...". You say that as a time traveler, I have nothing, but let me make up for it and win.