I Got Married Just After Time Travel, and the Emperor Asked Me to Die?

Xue Tianxiao, a top student at the Military Academy, opened his eyes and traveled through time to a fallen general in the late Tang Dynasty. He was still getting married to the emperor's favorite Princess Pingyang! The red candle tent is warm, the beauty is as beautiful as jade, but outside the door is an imperial edict from the emperor: On the day after your wedding, I will make you the general of the expedition to the north. Within three days, you will lead the remaining troops to the north to fight against 500,000 Khitan wolf cavalry! Everyone in the civil and military circles of the dynasty said that this was a situation of ten deaths and no life. The princess treated him coldly and regarded him as a dying person. In a desperate situation, Xue Tianxiao accidentally activated the [God-level War Sign-in System]! [Sign in the wedding room and get a gift package for newbies: a god-level unit, three thousand Yanyun Xuanjia Cavalry! [Sign in at the armory and get a complete set of forging blueprints for 'Ma Shan', 'Mo Dao', and 'God Arm Crossbow'! When everyone thought he was going to die, Xue Tian roared and three thousand black armor moved, shocking the world! Princess: My husband is actually a famous general? Emperor: I asked you to die, not to penetrate the Khitan!