Because he's not good in bed, all of Natsume's lovers break up with him. "I'll become the best person at sex in all of Japan so that I can rub it in the face of my ex who dumped me!" He boldly declares. Natsume selects "Kou" from the escort service to help him improve his skills, but there's a surprise when Kou arrives at his house...?! The story of a "housekeeper" and a troubled, heavy-thinker with a love agenda! セックスが苦手なのが原因で、いつも恋人と破局してしまうなつめ。「日本一セックスが上手い男になって自分をフった元彼を見返してやる！」と決意する。スキル向上のためデリヘルで『コウ』という男を指名するが家にやってきたのは……！？　ギャップ持ちハウスキーパー×悩める理系男子の恋愛アジェンダ！