A malicious time traveler seeks to replace Superman and so attacks the world's consciousness. In order to protect Superman, the world consciousness sent him to another world without superpowers, but with superhero comics. When Superman was sent away and spent 25 years ordinary, he returned to his original world. Clark Kent, who thinks he is a time traveler but is actually Superman, and Bruce Wayne of this world embark on the road to becoming a hero together. They protect the world and each other.
Purpose: Protect and support each other.