Old Secret Guard: I Wanted to Live, but Why Did I Become the Emperor?

[Overhead + system + rejuvenation of the old man + multiple female protagonists + struggle for hegemony + restoration of the Han Dynasty] When the dynasty fell, the deliveryman traveled through time and became the old secret guard Fu Bo. Carrying the little prince on his back, holding the princess in his arms, and carrying the imperial seal, he was desperately trying to escape, but was immediately overtaken by the enemy. At the critical moment, activate the Han Dynasty treasure chest system! Kill enemies and explode equipment, save people and explode skills, and occasionally gain years of longevity! So, he chopped off the head of the pursuer leader with one blow, and exploded with a sword that could kill horses. Then he grinned at the pursuer, with no trace of old age in his eyes. "Food delivery people are not only good at escaping, but also good at precise delivery!"