http://www.mangago.zone/read-manga/k_sensei_no_renai_na_nichijou/

Maybe this will work?

http://www.mangago.zone/read-manga/k_sensei_no_himitsu_no_netsujou/uu/tr_chapter-1/pg-1/

Scrap that, that’s not the right manga. It seems like the manga you’re looking for is redirected at that one. Here’s the myreadingmanga link.

https://myreadingmanga.info/natsumizu-ritsu-k-sensei-vol-5-k-sensei-no-renai-na-nichijou-eng/

thanks a lot .