I'm looking for this manga.. well idk if it's a manga but I always see it being use by sca...

This? http://www.mangago.me/read-manga/k_sensei_no_yaban_na_renai/mh/manga/k_sensei_no_yaban_na_renai/v01/c002/pg-12/

No no.. he's just by himself like in a hallway of a high school..

I think I know what you are talking about but I dont think its a manga.
He has glasses and sort of sparkles in his blue hair right?

Yes.. his hair is straight but kinda fly away at the tips..? so it's not a manga?

I'm pretty sure I saw the guy your talking about in the intro pages for the translators(idk what they are called sorry)
I will try and find it
Still pretty sure its not a manga

i found one without color
http://www.mangago.me/read-manga/yasashii_koi_ga_sodatsu_made/uu/yasashii_koi_ga_sodatsu_made-chapter-1/

Oh you're still looking for it?! I feel bad somehow but yesss!!! That's the one ヾ(☆▽☆) so it's not a manga ?

Lolo! its okay I don't believe it's a manga