Imagine a world where humanity's deepest fears, forgotten urban legends, dark gaps in history, and even chilling nightmares... All these negative energies have not dissipated, but have converged into an alien space called the "Heart Abyss".
"Heart Abyss" will periodically capture "destined people" in the real world and put them into a "fear realm" derived from its core fear. These "terrible realms" are not simple reproductions of scenes, but living mazes with self-awareness and malice. Here, the laws of physics may collapse at any time, the shadows in people's hearts may turn into entities, and past traumas may become the deadliest traps.
