Becoming Invincible By Going Invisible
The world has changed.
Dungeon appeared one by one and the value of humanity is renewed.
If you are not powerful enough to enter the dungeon then you are nothing.
Those who conquer the dungeon will earn fame and riches.
I who has a useless skill 《Unimportant Existence》 is considered as a useless person. Nobody wanted to party with me as my skill couldn't help me search for a party. Left with no choice, I entered the dungeon alone. I swear that I will become invincible by going invisible!