Lan Jingchen, who has been dealing with supernatural incidents with his friends, got half of a mysterious ancient iron box that had been sealed in a certain incident. It was unknown what was sealed in the iron box that was split into two halves. In order to free the client from the influence of the iron box, Lan Jingchen gave the client a charm to protect him from ghosts and gods and bought the iron box from the client. But what he didn't know was that although the seal of the iron box was released, the things that had been sealed were still inside the box. When the two halves of the iron box merged into one, the sealed things reappeared. Although they only had half an iron box in hand, they were still involved in many strange things - although for them who have been dealing with supernatural events, strange things are not surprising. However, this half iron box attracted not only these strange things, but also even stranger people. Lan Jingchen felt an inexplicable sense of familiarity with someone he had never seen before.