The Lantern Festival, also known as the Shangyuan Festival, is a traditional Chinese festival. During the Tang Dynasty, Buddhism flourished, officials and common people generally lit lamps to worship Buddha on the fifteenth day of the first lunar month, and Buddhist lights spread all over the people. , the queen was seriously ill, but a caravan was mysteriously killed outside the city of Luoyang, which cast a shadow over the upcoming Shangyuan Festival. With the deepening of the investigation, the whole of Luoyang fell into a greater crisis for a while.. .