Liu Che, Don't Kill Me. Bai Yueguang Is Back from Studying Abroad.

[Western Han Dynasty + four college students for Emperor Wu of the Han Dynasty + group portraits + official history + farming + funny + don't send coordinates to aliens] In the fifth year of Yuanfeng, Emperor Wu of the Han Dynasty, a group of people from outside the world suddenly appeared. At that time, General Wei Qing was seriously ill. The imperial doctor was trembling with fear, and all the officials were obedient. Liu Che, who was in his fifties, was full of hostility and scolded the prince Liu Ju and the three sons of the Wei family until they were beaten to pieces. No one in the general's palace dared to speak loudly. Seeing the swords and guns in the courtyard, the people from outside the world huddled together. Only one person was overjoyed: Liu Che? What are you looking at? Naigong is back! … The protagonist is Han Yan, a favored minister of Emperor Wu of the Han Dynasty. She was killed by the Queen Mother and traveled to modern times. She returned thirty years later. She had a stinky, proud and arrogant personality. Bai Yueguang, their childhood sweetheart, died when the two of them were at their best. Thirty years later, with the wisdom of future generations, he suddenly fell from the sky.