TRPG, which stands for tabletop role-playing game, allows players to assume their own roles in an engaging environment. Within the boundaries set by the rules, players can experience various open-ended story developments based on their actions, leading to different conclusions. The Cthulhu running group represents a significant segment of TRPG. The characters portrayed by players are merely ordinary individuals, yet they seek to uncover mysterious occurrences, confront unknown mythical beings, and face unseen fears. One crucial piece of advice is given: the less you know, the longer you survive. Liu Xing, driven by curiosity, initially intended to run an online Cthulhu group and inadvertently found himself entangled in the real Cthulhu running group game... A first group, 655622053 (now expanded to around 2,000 members, providing ample space), and a second group, 455841754, invite you to participate.