Administrator
That was the name the one in front of me called herself in the novel. However, later down the line, we were introduced to more important facts.
Administrator of Tower, or Dungeon of Trials, was a part of the System's consciousness that the System left inside the Universe to maintain the Tower.
"Why do you think I would answer your question?"
Administrator answered without looking at me. She was busy watching the cadets exploring the dungeon and quenching her boredom.
"It's my reward"
I shook my shoulders.
She would have to answer. After all, she was a part of the System, an entity that maintained rules. She had to give me an additional reward, and answering a question would also be better for her than to give material rewards equivalent to my feat.
System was an omnipotent entity. It existed since the beginning and governed over the laws with its supreme {Authority}.