The story takes place in Liuli Town, located on the southwest border of the Daxuan Dynasty. It is surrounded by mountains, has a humid climate, and is rich in colored glaze and jade. The town is centered on the bell tower, with well-proportioned streets and eaves paved with glazed tiles. It is brightly lit at night, just like a fantasy. Liu Dingkun and Xie Rubiao were childhood friends, but later turned against each other due to interests; they had business dealings with the owner of an antique shop; they were secretly monitored by the mysterious organization in the town; they had a relationship with the deceased in the falling incident. He is a native of Liuli Town. He came from an ordinary family since he was a child. In his early years, he followed his father and brother in the jade business and traveled around the world, developing his strong ability to observe people's emotions and negotiate. He and Xie Rubiao were childhood friends, but they broke up completely due to a jade transaction. On the surface, he appears to be a shrewd businessman, but in fact, he harbors guilt and obsession with the past.
Liu Dingkun does not have a golden finger in the traditional sense, but due to his long-term exposure to ancient jade and glazed artifacts, he has extraordinary identification ability. He is especially sensitive to the texture of glazed tiles and jade, and can discover hidden clues at critical moments.