What Should I Do If Something Goes Wrong While Reading a Horror Novel?

In the early hours of the morning, a strange call from a deceased friend completely tore Li Mu's peaceful life apart. There was only the continuous sound of water dripping on the other end of the phone, and the suffocating sobs that seemed to be drowned by water. The courier received later contained a gray-black dead man's fingernail and an old newspaper with the words "shadow", "eye" and "door" circled in red pen. From that moment on, his shadow began to have a mind of its own. The black shadow on the wall would squirm in the peripheral vision, the reflection in the mirror would be half a beat slower than his, and there would always be a series of wet children's footprints in the corridor late at night. The warning written in blood on the newspaper became his lingering nightmare: "It's coming. When the shadow and body coincide." In this quietly collapsing world, ghosts cannot be killed. They follow some twisted "rules" to hunt humans: You can't respond to the cry, you can't turn your back to the shadow, and you will be found if you haven't hidden yourself when you count to one hundred... The only way to survive is to understand the rules and struggle to survive in the cracks of despair. In order to survive, Li Mu was forced to become a ghost controller who walked between humans and ghosts. He gained the power to pierce the supernatural, but he was also burdened with a cruel curse: Every time he uses his ability, the "ghost" in his body will wake up until it is completely swallowed up. And the green and black lines spreading on his arms are pointing him to a more terrifying truth. Everything he encountered revolved around that rusty iron door. When the patterns on his arms match the symbols on the door, will he be the final gatekeeper - or a walking, guiding "living door"?