Is it wrong to level up in Dungeons!?

Is it wrong to level up in Dungeons!?   Chapter 1. An Average Dungeon: Ten Years

Honestly, I would not complain if the outcome depended on me. Even if the result was the same, I would the least have known that it was my own fault and I am to be blamed. And now, what can be said ... out of luck? Even as an excuse it is a weak one.And yet – this is the reality. I am the weakest. The weakest in a world where I have to risk my life.It all started ten years ago. As I remember it, in front of me, a twelve-year-old youth, appeared "Origin", as it is now called. Everyone saw it differently. For some, it did not resemble a human being at all, but I saw it as a reflection of myself, with the only difference in the opposite colour scheme.I don't think I got this "power" by accident. Although, unlike the others, I was not the one the power giving white beam aimed at. I was just trying to protect my friend and shielded her from this strange white light substance. Stupid, stupid human being - I always try to save everyone. How did I feel when, tw