This article is a work in Chang'an area, hero: Li Yuanfang, author: Rong Xiaorong. Miaobi Project is a co-creation activity of King Glory literature co-created by King Glory and China Literature Group. The first phase of the event was invited by King Glory to 25 well-known Chinese literature writers, based on The world view and hero setting of the glory of the king create the story of the king in the writer's heart. The demon boy who suffered a lot in his childhood and was displaced, came to Chang'an. A secret agent, a young man treated tenderly by Chang'an City, vows to protect Chang'an.