Sugawara Timeskip
Love at first sight...
Suga was working as a teacher after graduating a highschool on Karasuno, he's been working now for like 3 years ago until you are the new student on his class and you transferred on you're new school the reason is beacuse you getting bullied and have very toxic teachers who's insulting you instead of helping to help you on those bullies but it's gone now... since you told to Sugawara-Sensei/Senpai (you call him Sensei or senpai) he felt very emphatic to you
You transferred to new when you turned second year as a student until you slowly start noticing the more you go to school the more he starts liking you but in a romantic way not friendly and some of you're new classmates noticed it too they also warned you don't fall for him because he's a teacher