A part of the phenomenon from the creative game now immersive virtual experience, VR AR is hot, new consumers and developers in droves, partly from the description of some novels, comics, animation in the future "game helmet" and other people to fully immerse yourself into the virtual reality equipment in the popularization, virtual game the world is obsessed with imagination.            We assume that in the future, the immersion equipment has been widely used, the interactive virtual world of life has become a part of people's real life, but some people worry that this is the real virtual world will bring some problems, such as the user cannot distinguish between real and virtual.            The hero of the game is the first person lost in the virtual world that can't wake up in such a background.