To start with, here is "Bitter Virgin" by "Kei Kusunoki"
Summary from OneManga
"Suwa Daisuke is the ladies man of his small town high school, and he has his eye on most every girl, except for one. Aikawa Hinako isn't his type, but when he overhears a deep dark secret of hers, he finds himself thinking of her more and more."
Photo courtesy of Wikipedia