I love how tsuka sensei went about this. I still don't like Toki sensei but I can feel that she is not a bad person and is ready to change. I like that the author made the characters acknowledge that they are projecting their own fears and mistakes onto the students which is currently making them suffer. That was why I didn't like Toki in the first place, she kept projecting her own experience onto the students. It was like she was punishing them for the mistakes that someone else made in the past. I'm glad Tsuka chan made her realise that and she is taking a step towards the future.
I liked this manga except for the shitty coworker. What do you mean he doesn't get any consequences for doing a serious crime and almost leading someone to end their life?! Shiro had to take months to just come back from it while that jerk simply bowed his head and said sorry. That's it?! This is one of the many mangas where I've seen shitty people get forgiven easily. Why do manga authors seem to move over serious assault like its nothing?