Since the beginning of time, the real world and the magical realm have co-existed together. This means magical monsters, dungeons, and of course, heroes. We follow the story of 18 year old Hu Tae, who aspires to be a powerful hero someday and make a name for himself. Sadly, he is one of the weakest heroes in the world, making him looked down upon.
In a dungeon run gone wrong, a mysterious power is granted to Hu Tae, making him a part of the "Training System". This gives him a power better than anything he could have hoped for, the power to rise in power,