Great Qin's Strongest Crown Prince

After transmigrating into the discarded crown prince of Great Qin, Qin Yun had planned to eat, drink, and wait for death. But the imperial treasury was empty and rival nations were eyeing them hungrily. With troubles within and threats without, Qin Yun had no choice but to use modern knowledge to defy fate. From then on, he had three thousand beauties at his side and steadily rose to the pinnacle of life.