Does anyone know what manga is this image from?
Nande koko ni sensei ga!?
>>368845
Just to clarify what this anon said, it's from one of four one-shot prequel spinoffs of that called Golden Times.
Golden Times: https://www.mangaupdates.com/series.html?id=134736
Nande koko ni sensei ga!?: https://www.mangaupdates.com/series.html?id=136936
I don't know if this matters, but I'm helping, I assure you.
Thanks a lot guys