This is a manhua ヾ(❀╹◡╹)ノ~
https://www.mangago.me/read-manga/chen_sheng/
Here is my favorite:
https://www.mangago.me/read-manga/suki_ni_nattara_dame_desu_ka/
https://www.mangago.me/read-manga/love_awakening_x_syndrome/
https://www.mangago.me/read-manga/yukidoke_no_koi/ (I recommend the spin-off of this story too)
Any teacher x student trope bl pls! Preferably mangas but manhwas are good as well! ARIGATO GOZAIMASUヾ(❀╹◡╹)ノ~