From SCX-Scans:
It tells the story of a couple, both very innocent and in love with each other, who are now living together! Takeshi is a pure-hearted college student who is enticed by his girlfriend that has run away to live with him. Temptations ensue.
OSHIMA Towa
Related works
Shinjou Shouryuu is a healthy 17-year-old high-school boy. Many of his kouhai wonder why such a great guy doesn't have a girlfriend. Ask him and he'll tell you that between school, work, and saving his kouhais from bullies doesn't leave him much time to go on dates. So he instead goes online to "F.I.L. GATES". There in the chat room his alter-ego, Kakeru, is infatuated…
From DrMaster:
A hilariously hip account of life at an all-girl private high school. As the student body comes of age we witness their search for love, sexual controversy and the rivalry between cliques. Based on the authors own real life experiences this is one manga you don’t want to miss!