Riker is an ordinary boy who misses his parents a lot. One day, while he is sitting in his room, a bright light comes out of his computer and pulls him inside. The next moment Riker finds himself in the Spirit World, where he meets his father's soul. Here, he tries to know the secrets related to his father's death and about Kai System. Will he be able to get out of this mysterious world? Will he be able to solve the mystery of his father's death?