Abyss Envelope

[Unlimited streaming, ten copies, ten micro-thrillers, and ten no heroines] Ning Shaoyu woke up and found that he could not remember anything, but he seemed to be in a strange world. There was an inexplicable letter in his pocket. He thought it was an ordinary letter, but he did not expect that the letter came from the abyss. Anyone who gets this letter will be pulled into a world where evil spirits are rampant. Only by completing the task and finding a way out can there be a chance of survival. --------------- "You are just one of my experimental subjects, my ghost slave. What qualifications does a mere ghost slave have to teach its master?"