For some reason, "I" came to the Blue Spirit Planet, and unexpectedly appeared in a special country on this planet - Paradise on the Other Side. At this time, I knew nothing and had complete amnesia. I always have a strange dream, and this dream is as real as my memory. I thought I had met someone I could trust for the rest of my life, but unfortunately I found that my thought was too simple. Everyone in this country has two souls living in their heads. What's even more frightening is that I can't stay alone for too long, otherwise I will gradually lose my mind...