Responses
Ooh! I know this. And the girl have some kind of flower idk. Following, so i could add it in my list
http://www.mangago.zone/read-manga/akuma_wa_sasayaku/
Is kinda similar but not the one you're looking for.
Cute nonetheless.
A shoujo highschool manga, there's a girl who got a seat next to a window, from there she could see a secret place (stair which is rarely used) where a group of popular senpai hanging out, she's always watching the senpai with dark hair. But it happens that another senpai likes her, his name was Sakura senpai.
I've been searching for this for sooo long and haven't found it ╥﹏╥