Exiled, I Plunder the Emperor's Treasury with My System

Transmigrated as a foolish duke's son, Ren Tianxuan, he's exiled with five sisters-in-law after his family's murder. Activating a system, he empties the emperor's treasury. Facing assassins from his family's foe, he protects his sisters-in-law, reunites with his friend, reaches Lingnan, builds power, and starts a rebellion.