M'Lady Lay On !
I rarely give someone story a review, but I see a potential in this story. This is my suggestion for your story, like you can make a plot point like when Yukari got bored after finishing DxD world storyline, she can to go mutiverse in the future with her boundary manipulation ability. Well one more suggestion, you can use grammarly "use the free version" to check any grammatical errors in your story as long as you dont use the automatics function, you can see any error in your story for free. Keep up the good work author sama. That's all from me thank you.
Finally, our beloved teacher will not end up in tragedy.
Anime source please ?
Maybe this one
Nagumo Hajime Arifureta
Dayum got nothing from this info, author sama.
I agree with you .