Guys are overreacting... maybe this is where he is taking revenge for a teacher those girls hurt before. Kinda of show them the right path and their future where it is bright then snatch it away like they did to a previous teacher.
tsubaki is a complete idiot. Why would she say something so fucken obvious on page 5, she perfectly described what happened right in front of a teacher.
god I can’t wait until this bitch crashes and burns.
Jimi should probably be calling the Japanese emergency phone number already, not just be chatting and whatever. In a situation like that, a single minute can decide between life and death. And also between doing his duty properly or not doing his duty properly, as a teacher. But I suppose this is no different from the infernal discussions in the middle of a fight in 99% of all Japanese fighting manga.