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The top 5 hero academy are the main hero academy in the world.
The phoenix Academy is the top of all academy.
Gryphon is ranked second.
Hydra is ranked third.
Pegasus, is ranked fourth.
And finally,
Kraken is ranked fifth.
Although every hero academy has the same goal , the phoenix Academy is a bit unusual. Compare to the other four academy it's a bit more "Ruthless".
Although the academy always tries to hide it, it's an open secret that everyone knows.
After the demon king was killed humans surrounded themselves with huge walls. Without a ruler the hierarchy of demons also went astray . The other civilized races that appeared during the gate 300 years ago is also no more a thread to mankind.
This also became a crisis for the whole mankind.
