Slime and an Alien

Rinmaru Tempest, his story being of a former human named Satoru Mikami who died and got reincarnated as a slime monster. And had been transported to another world with several unique skills and abilities.

However, what would happen if a fellow shapeshifter arrived in this world the same as he did.

Enter Ben Tennyson, The universe's hero, after nearly blowing up Malware the mutant Mechamorph somehow replicated and sent Ben to this new world.

Now watch as these two transforming heroes travel this amazing world fighting orcs, demons and all manner of enemies.