1. Reincarnation system: The selected ones will be regularly pulled into a terrifying world called "Reincarnation Space" and forced to complete various weird and terrifying dungeon tasks. Failure means literal death.
2. Unique golden finger: Su Wan's golden finger is not for combat, but for a card collection system called "Secret Illustrated Book". Every time she goes through a dungeon or solves a key puzzle in the dungeon, she has a chance to obtain cards related to the boss or core resentment of the dungeon. Cards can be used in subsequent copies, and their effects may be "deterrence", "communication", "short-term control" or "revealing weaknesses", but their use has great risks and side effects (such as mental pollution).
3. Micro-horror core: Horror elements focus on psychological suspense, atmosphere creation and strange rules, rather than bloody violence. For example, "In the corridor of the hospital at midnight, you cannot turn around to answer other people's calls", "The reflection in the mirror will be one second slower than reality", etc.
