Based on the adult manga by Miyabi.
These OVAs tell us two distinct stories:
Pure Hearted Girl: This is the story of Jounouchi Yuuto, a high school student womanizer who is going to fall in love with the new pure hearted student, Kuramochi Konomi, who is very shy.
Net Love: This is the story of Rumi, a high school student who practices the "Sex-Web", a practice which consists of making love from a distance with strangers thanks to a voice chat and a device called "Trans-Hole".
(Source: Nautiljon)