Strange World, I Am the Only Immortal

Have you ever heard of lucid dreaming? According to legend, if you lie alone in bed in the dead of night, you will constantly plant psychological hints for yourself. After you open your eyes again, you will come to a place you usually see in your sleep, and everything here is the same as reality. And you can control it at will and fabricate this dream. But what if one day, the dream begins to breathe of its own, and is no longer controlled by you. There are some strange shadows in the corners of the once familiar places. After being swallowed by those shadows, your dream will collapse and you will not be able to wake up again. Do you still dare to dream? ... This is the story of an ordinary person who became an immortal in the strange world and dreams.