0.5D.

Sada Seiya, works as as the ace of the second sales division known informally as the “Ikemen Department” in the Intermedia Communications Department at a general trading company. Due to Sada’s natural tendency to always try and look cool, he stuck to the facade of having “a long-term girlfriend” and ended up in a situation where he was “0.5D,” or half a virgin. However, after ten years, Sada falls in love again. He decides to seek love advice from Uno Daiki, a junior both from his university and his company, who has had eight girlfriends in the past…