Akari Hana. The substitute teacher for Class 1-A and she was already not a person to be found over. Hana was an old lady who seemed grumpy all the time and she, in fact, was. You can think of her as a Karen, basically.

Everyone was chatting and the usual chaos was on as usual until Hana walked in. Ashido beams, waving.

Ashido: "Good mor-"

Hana: "No one gave you permission to speak!"

Hana snapped in a heartbeat, making everyone go silent. Slowly realizing she wasn't a kind woman. Midoriya gets nervous, frowning a bit while Bakugo scowls, prepared to throw hands with the old lady. Todoroki and Iida share a look until Iida gets up with an authoritative tone.

Iida: "Sensei, I apologize for interrupting but-"

Hana: "Sit down and don't speak unless given permission too!"

Hana yells again and Iida flinches, sitting down almost straight away. Uraraka and Asui look at each other then glance at Hana worriedly.

The entire class did not like Hana. Not one bit.

Bakugo: "The hell is your problem, hag!?"

Hana: "SILENCE!"