Afterwards, people awakened abilities that allowed them to use mana. Mana is the magical energy that flows in all living things. When you awaken, you are granted the ability to use it.
These awakened people that fought in dungeons were called dungeon Seekers after the game because most of the systems were similar to the game.
There are 12 ranks that dungeon Seekers are classified under, and these 12 are divided into 3 stages, 1, 2, 3. They are all given by the system and they cannot be cheated. The higher the rank the stronger the dungeon Seeker. They level up by obtaining experience points also called XP from killing monsters.