Every language will become 'questionable' if you won't use it enough. I noticed it with my native one. It deteriorate with my shift in learning English, cutting down on conversation with real people and reading less traditional books.
They're acting like banning high schoolers from entering dungeons is a bad thing. And I believe this situation proves that most of them aren't mature enough to enter without supervision.
I feel like... this whole series is just going to be the MC babysitting some retards every chapter. It was okay for 1-2 chapters, but now it keeps happening. There is no romance. No love. The series name should turn into Return of the MASO Hero... or something.
SMH at the coomer classmates ogling the girls. Props to MC for yielding his spot in line. LMAO at him getting caught in the bathroom line to add tension.