The Shadow prodigy (High School Prodigies have it easy in another world)

Coming to this new world eight Teenagers were sent to save this world from the might of ever growing tyrannical empire. These teens were prodigies of the fields of the modern world. One was a inventor of 500 years ahead, another was an expert in illusions and magic tricks.

There's was one is willing to protect them with his life. And he will bring the strategy and tactics of modern warfare into this new world. It's time to show this empire is not as powerful as they thought.