The Strongest Crown Prince in History

Li Tiancheng wakes up to find that he has transmigrated! And, in a ludicrous twist, he has become the crown prince of Great Yan. He thought he could coast through life and find a wife, but it turns out he's a spoiled wastrel hated by everyone. What? He's even been demoted and sent to Liangzhou? No problem, no problem. He's got brains: he'll earn some money, marry a beautiful wife, and enjoy life traveling through the mountains. Who knew he'd accidentally get tricked by his cheap old dad into becoming crown prince again? He loves beautiful women, not the throne!