If it's just this level of opponent, my friends (← the strongest race) might have been much stronger?
Elta fell to the lowest level of a certain dungeon and returned to the surface on this day.
He spent ten long years there, but thanks to the "friends" he met, he grew up bright and straightforward.
However, there is one problem.
The place where Elta spent his time was the lowest level of an S-rank ultra-dangerous dungeon, and on top of that, his so-called "friends" were all monsters.
And to make matters worse, he returned without knowing that fact.
Having grown up in such an environment, Elta had indeed acquired a monstrous strength.
Moreover, having spent his childhood at the lowest level, he seems to have no sense of common decency.
What he does on the ground, after all──.
This is a story about Elta as he continues to be caught up with his younger sister and childhood friends unconsciously dominating in various places.
this one might be a good one.