Rise of Avalon

You've reed multiple stories about hero being kidnapped, being betrayed, being enslaved, and being manipulated. Well what happen when the whole earth finds out the reason it's people have gone missing and what happen to them. The story starts out in earth year 2200, the people of earth have just found out about people from other world kidnapping their children ( usually the person summon is in high school) and forcing them to fight in their war. The United nation retaliates by creating a gate to other world and made contact with the people of other world, they made a global announcement to those worlds that if they do not stop kidnapping the people from they will declare war. The prideful nobles and royal from all race in the multiple worlds feels insulted by such deleration they decided to go with war. At first the people of earth were winning with their advance technology but they had to fight against multiple worlds and the other world used mana which is limitless well earth resources were running out. What will the people of earth do!?Inspired by: naruto, dragon ball z, fate stay night, to aru majutsu no index, one piece, bleach, sword art online, and every transported to another World Series.etc.-------------------------------------------------------------------------------------------------------------------------------------------------------Author's note: I think I made Alfred and Origin too OP that I got bored writing the story, I don't intend to drop it and it will still be release once a week, it's just that I came up with this idea got to excited and wanted to start.