"It Seems a Level-Grinding Addict is Challenging Musou"

I was endlessly grinding levels in a spot with good experience efficiency when, by some twist of fate, I ended up challenging the deepest floor alone—the very floor that had made even the top clearing group say "it's impossible." That said, "—Come on, Kanade, keep your promise and take it off." I'm being cornered with words like this, and my childhood friend is on the verge of tears... what is going on here...... ※I aimed to create a work that can be enjoyed straightforwardly as a protagonist-strongest-power story.