Who is the strongest hero in history!? In order to solve this conundrum, a professor completed a time machine and used it to test the might of warriors from different ages. Unfortunately, he was unable to find an answer. A year later, six new heroes appear. Now, the largest battle of history is about to begin.

Who is the strongest hero in history!? In order to solve this conundrum, a professor completed a time machine and used it to test the might of warriors from different ages. Unfortunately, he was unable to find an answer. A year later, six new heroes appear. Now, the largest battle of history is about to begin.