You get 2 stories in this package, Armor-I and Baranzu.
Armor-I: A scientist named Kizen created a new substance, that is very dangerous. In order to make sure that it doesn't fall into the wrong hands, Kizen hides it on earth. Now Earth is under a secret invasion by forces that want Kizen's creation
Baranzu: Twins Brian and Briana visit their grandfather in Japan. What they find is great is adventure.