28歳、院卒、入社3か月目。
ルール絶対主義の主人公・花村かおりは
ある日の会社帰り、既婚者の部長（♂）と同じく既婚者の先輩（♀）がラブホテルから出てくるところを目撃する。
不倫なんてゼッタイに許せない！・・・と息巻いたのもつかの間、ふたりの関係は「夫婦公認セフレ」だと言われ!?
She is 28 years old, has a graduate degree, and has been with the company for 3 months. Kaori Hanamura, is a rule-follower. On her way home from work one day, she sees her married boss (male) and her senior (female), who is also married, coming out of a love hotel. I can’t allow adultery in any way,” she says! But, she is told that their relationship is an “official friendship between husband and wife.”
