Mysteries occur frequently in the city, and new supernatural forces are undercurrent. Lin Yuan and Meng Qiu formed an investigation team, Zhu Ling was accidentally involved, Tang Yian assisted in the investigation, and everyone used humor to resolve various bizarre and thrilling cases. They discovered that a mysterious force marked by "laughter" controlled many strange events. The three people traveled through cities, villages, and cyberspace, telling scary supernatural stories as jokes, but behind them were life and death crises. In the continuous revelation of intricate storylines, they gradually approach Roelchi's true identity; each of them faces their inner fears and growth, and finally faces the darkness of human nature in the mystery of "The Laughing Ghost Files". The three volumes respectively start from urban investigation, case digging to the final showdown, realizing a closed loop of clues, character growth and a panoramic view of the world.
