One day dungeons and towers arrived, almost wiping out humanity.

South Korea suffered the most because there were many dungeon breaks there.

However, with Evil Monsters also came Good Power. While in the crisis. Many People shone with the now-called "Talents". They used it to kill the monsters and saved the world.

They were described as Heroes. The dungeons existed for the past 49 years and still continuing on.

A Special Training Facility was made for young heroes who aspires to be strong.

"The Hero Academy".

The Main Protagonist and all the supporting characters were there. It was a complete novel.