The mysterious and strange UFO plays a game with humans. It is a game of death and despair, and it also creates a killing machine, referred to as an experimental subject. She will be the killer of this game. Just when there is no hope in the world, the appearance of a person changes everything. The story begins with the male protagonist and a group of 15 people on a search mission on a deserted island, but what they don't know is that this will be a mission that they will never come back from. All their whereabouts are monitored by a mysterious force. The moment they land on the island, the game has already begun. This will be a desperate battle. If you see some sentences that are unreasonable or wrong, it means that your mind has been controlled by the experimental subject.