maybe thiss? http://www.mangago.me/read-manga/sensei_no_sensei/
Its not it, but I like the recommendation. Thanksss
Not this as well, haha. But I like this as well
This is the one I was looking for. Thank youuuu
You're welcome
Cannot believe I forgot about this gem by Yamato Nase. It’s a favourite too.
(⌒▽⌒)
Its a BL manga..There are two men who are teaching in an elementary school, one is well liked by students while the other, not so much. I think they were both straight at first (not so sure). And I remember one part where they came to like a hiking in the mountain and one of the two forgot their lunchbox. Thanksss