A group of strangers find themselves trapped in a maze-like prison. It soon becomes clear that each of them possesses the peculiar skills necessary to escape, if they don't wind up dead first.

A young programmer whose job is to watch over the reality-warping Cube defies orders to rescue an innocent mother trapped in one of its rooms.

Eight strangers awaken with no memory, in a puzzling cube-shaped room where the laws of physics do not always apply.

A being of light hailing from a faraway galaxy unites with Yuma, the protagonist who owns tremendous “power of imagination,” and they form the gigantic new Ultra Hero: Ultraman Arc.