The Great Qian Princess’s Consort: With a System, I’m Invincible

Su Yang transmigrates to ancient times and awakens a System. Whenever he interacts with someone of noble status, he earns points, which he can exchange for goods: airplanes, cannons, even a time machine. By a twist of fate, he is dragged into the imperial palace and made a princess's consort. To his surprise, the princess is in a vegetative state! It turns out he was brought in to bring good fortune to the gravely ill princess. If she dies, he will have to be buried with her. To escape this fate, Su Yang goes to great lengths to deal with the jealous emperor, his father-in-law, all so he can get closer to the princess and earn more points. In the end, thanks to the System, Su Yang makes a spectacular success of himself in the Great Qian Dynasty. Emperor: “Dear son-in-law, stop spending all day with Yuzhi. Hurry up and bring out that divine cannon. I want to sweep the northern barbarians away this time.” Empress: “Yang'er is so devoted. Unlike His Majesty, who spent the night in another palace yesterday.” Minister: “Consort, stop holding the princess! The locust plague is this severe. If you don't step in soon, the Qian realm will descend into chaos.” Princess: “Husband, what's going on? Why are you always so shameless? What should I do? I love it!” Su Yang: “I can't go on. My body can barely keep up. I need to build up my strength, or how else will I earn points?”