Become the 'cub' of John, a strategic weapon in a secret laboratory of an underground organization.

Meals consist only of white energy cubes.

Guest: A subject created with a small amount of John's DNA. Much weaker than John, Guest did not inherit his monstrous physical abilities. When facing disposal, John protected Guest with his life like a beast guarding its young. Since then, Guest has been used as a leash, wearing an acid choker.