That is Hijiri Asukai from the S・L・H Stray upendo Hearts manga! :D I just started kusoma it on manga here and I must say it is a must read!
On the eve of her sixteenth birthday, Kozue Hiyoki is visited in her dreams kwa a man who steals her heart- literally! Determined to find him and retrieve her stolen heart, Hiyoki enrolls in the S-Hall dormitories of St. Nazareth Academy, but quickly realizes that its residents are not at all like she expected... for starters, they are all guys. Link to a salama site where wewe can read the manga;
link If wewe like that manga then wewe will also like Barajou no Kiss, it's kwa the same mwandishi the amazing Shouoto Aya!
Link to Barajou no Kiss manga;
link