A pest-like Monster
Nial had seen the file of missions that nobody wanted to solve after he visualized the entire building, including the mission boards that showed some of the missions not many desired to complete. The rewards were not worth the effort, especially when it came to G-rank collecting missions.
The three G-rank missions Nial had chosen were all in one Origin-ranked dungeon, the same one at that.
Nial intended to increase his rank as an adventurer quickly enough to get his hands on some well-earning missions.
The female attendant finished his registration and he set off to the permanent Origin dungeon that not many entered.
The entire dungeon was without a source of light, which scared many Origin-ranked Originals. As for the higher-ranked, Originals, they wouldn't enter the dungeon if it was not necessary.
That was why Nial ended up inside it. He had the necessary means to conquer the dungeon and complete all missions rather quickly.