Tsubaki Sannomiya had a big problem with her husband. His sperm count was low, making natural pregnancy nearly impossible. Of course, infertility treatments cost money, which made her husband frustrated and cruel towards her. One day, she was invited by the town council chairman, Ohisa, to attend a meeting. Little did she know that this would lead to humiliation under the guise of "infertility treatment." Despite their monotonous love life, Tsubaki found herself craving the intense pleasure she never experienced before...

三宮夫婦には大きな問題があった。夫の精子が少なく、自然妊娠の可能性が限りなく低いという事。不妊治療には当然お金もかかるし、夫は自暴自棄になり妻のつばきに辛く当たっていた。そんな時、町内会の会長・大島から町内会の会合に誘われたつばきは、「不妊治療」と称した辱めの数々を受けてしまう。しかし、夫との退屈な営みでは得られなかった激しい快楽に、つばきの心とカラダは…。