The matter that was taken down by an old friend who hates a beloved lover ~ Bullish girlfriend of a lover in the boss ~

Yoshimine Yayoi, whose main character, Wakaba Asakura, is in a relationship, is a talented woman who can work and is admired by everyone.
Wakaba who got OK after doing an ardent approach to such a girlfriend was grasping the happiness of so much through cohabitation life.
However ......The only strength that he can be proud of was that he was "the boyfriend of the night".

One day, Wakaba will be in charge of a big project that has jumped into the sales department to which he belongs、
The partner of the client was Ryojo Takumi, who had bullied himself when he was a student.
There is also the support of the night night who accompanied the sales, the negotiation seems to have been successful ...... but at a later date, the negotiation is suddenly canceled.
Wakaba depressed, night night that can not see the mistake of such a boyfriend was to face the direct negotiations with Takumi.

In such a situation, Takumi is the true heart of the night宵I really want to be a woman to rely on rather than being relied on, I really want to be spoiled by my boyfriend ── It was noticed.
And while looking at the sensual limbs of the night night, evil aching comes up in the TAKUMI.
I will draw out the true foolery of the night night that young leaves can not see.

主人公、朝倉若葉が交際中の芳峯夜宵は仕事ができて誰からも憧れられる才色兼備な女性だった。
そんな彼女へ熱烈なアプローチをした末にOKをもらった若葉は、同棲生活を経てそこそこの幸せを掴んでいた。
ただ……彼にとって唯一誇れる強みは「夜宵の彼氏」であることしかなかった。

ある日、彼が所属する営業部に飛び込んできた大きな案件を若葉が担当することになるも、
取引先の相手は学生時代に自分をいじめてきた涼城匠であった。
営業に同行した夜宵のサポートもあり、交渉は成功……したかに思えたが、後日、その商談は突然取り消しになってしまう。
落ち込む若葉、そんな彼氏のミスを見ていられない夜宵は匠と直接交渉に臨むことになるのであった。

そんな中、匠は夜宵の本心――本当は頼られるよりも頼る女でいたい、本当は彼氏に甘えたい──に気づいてしまうのであった。
そして夜宵の肉感的な肢体を見ながら匠の中に邪な疼きが湧き上がってくる。
俺が若葉の見ることの叶わない夜宵の本当の痴態を引き出してやろう、と。