The flowers in Chang'an bloomed and fell, but they could not wipe out the undercurrent of mystery inside and outside the palace walls. Spring in Chang'an came earlier, bringing with it the monstrous conspiracy. Xiao Jing accidentally experienced a strange fire at the celebration banquet. In the side hall where the fire broke out, he saved the current emperor Mo Nanyi. The two discovered that the fire had been planned for a long time. As the investigation deepened, a plan involving power and usurpation came to light. In order to prevent the country from changing hands, the two tried their best to investigate the manipulator behind the scenes. Xiao Xiaoyu, the daughter of a general, met the eldest princess Mo Wanting while buying apricot cakes. Mo Wanting's younger brother is Mo Nanyi. After the two got acquainted, they worked together to investigate the case. The fate of Chang'an City will depend on the choices of a group of people.
Concept: A prosperous age does not mean that there are no shadows, but that there are people who are willing to bend down and see clearly the shape of the shadows