I need help finding a black and white manga. It was about a girl in high school and the ml was a teacher?nurse?counselor? Idk and he was friends with the fls brother(the brother didn’t show up much)and i don’t remember seeing the family. She was a tsundere type, and he flirted with her but never actually pursued her idk his character was complicated. They both have black hair, there was also a blond hair kid that liked fl and thought the relationship between fl and ml was weird. I think fl also was a loner and had a certain mindset that made the ml want to give her motivation? I don’t remember I think fl lived alone too. I think there was a train track scene too
Yeah…that’s all I can remember
https://www.mangago.me/read-manga/tsuiraku_jk_to_haijin_kyoushi/
I don't remember if there is brother....

I wanna read some good black and white stories any genre is fine
https://www.mangago.me/read-manga/a_lollipop_or_a_bullet/
https://www.mangago.me/read-manga/rumspringa_no_joukei/
https://www.mangago.me/read-manga/watashitachi_no_shiawase_na_jikan/
https://www.mangago.me/read-manga/fukyagaku_sei_no_himawari_bunsatsu_ban/
https://www.mangago.me/read-manga/a_proxy_painter/ (not a manga so read from left to right)
https://www.mangago.me/read-manga/the_walking_cat_a_cats_eye_view_of_the_zombie_apocalypse/
https://www.mangago.me/read-manga/stardust_family_official/
Thank you!