Koumei is a young man with a secret. He is a artificial intelligence that has been programming since childhood, and has developed a strong passion for video games. When the world is finally used up and he is able to spend his time in his homeland, he moves to Japan to pursue a career in games programming. Along the way, he meets new people and explores different worlds, all of which must be visited in order to progress. One day, he becomes lost in the game world and must find his way back. In the end, he must find his way back to his homeland in order to speak to his past and explain to him that he is not really happy with his life.