Sorry, I tried to find it but to no avail. And unfortunately I don't remember the title at all since I've read it some years ago.
However, what I described was not a good point in the story and a lot of readers felt it was a bullshit move by the author, while making the ending felt rushed too.
That reminds me of one manga where one minor villain ended up being up being confined at one point, and when he finally got out, he created a whole new system of magic and became the final boss.
The last words of the father were the highlights of the chapter for me. What a bad timing to laugh, but man, this author has no mercy, even for poor Mei.
I can get behind the teacher wanting to help a bullied student. But having the whole group of teachers + the director as allies is a bit over the top. At this point, reading this feels more like an utopia than something realistic.
The author could have added one or two adults who could have...
What I think of the current arc: the attack on Akira by his cousin shouldn't have happened and the rampage of the three golems shouldn't have happened either.
In fact, we could have learned about the black mist without a single fight... because I'm sure there will be another one once we enter...
Ouch, that must have hurt.
And also author of Kusunoki-san wa Koukou Debut ni Shippai Shite Iru, that's how you do a missed kiss (end of chapter for the curious).
Otobe and Hebikawa are so much more interesting than Kusunoki, I'm sad for the author at this point. They created their main heroine only for her to feel absolutely bland.
Sure, they want to make her the main focus of the story, with that "kiss" (lol), but they'll have to work a bit more in...