Become a Taker at the Beginning and Watch Me Rebuild the Country

Ling Yun traveled through time and became the emperor's youngest son. At this moment, the imperial city is under siege by rebel generals! If the city is destroyed, everyone will die. Ling Yun will never sit still and wait for death... What century-old family? It's obviously just a moth that keeps sucking blood. What kind of powerful enemy is invading? Look at the aliens I led the strong iron-blooded army to kill...