Chapter One – Bokura no Meikyu (ぼくらのめいきゅ) “Our Labyrinth”
Summary: A class of ordinary high school students suddenly find that their school has turned into a dungeon. It’s a web comic comedy series.
Original Japanese webcomic source – https://www.alphapolis.co.jp/manga/viewOpening/862000157/
I had to pay the translator so if anyone would like to donate, I would appreciate it. Here is the donation button – click on it and you will go to ko-fi where you can anonymously donate via paypal and leave a message.