A group of people wakes up inside a huge metal cube that contains thousands of rooms, not remembering how they arrived. Policeman Quentin volunteers to lead the group based on his experiences, but one of the group members opposes him. Government worker Worth remembers the government's association with this secret project and Mathematics student Leaven helps him discover the digital codes of the cubes, and a thief with his expertise helps them escape, and everyone realizes that using their different abilities is the only way to survive.