After one heavy-drinking night, Kaji woke up to find his usually-cool same-year colleague Kamiya on top of him, only wore a shirt, and was shaking his hips quite hard. Moreover, when asked what he was up to, Kamiya simply said "I broke up with my sex friend so it's been accumulated." After that day, Kaji started to grow curious and attached to Kamiya?! An office romance at Touto Daiichi Bank between a divorced man and a hidden slut. 飲みすぎた夜、目覚めた梶の上で、 同期で普段はクールな神谷がシャツを羽織っただけの姿で 腰を振っていた。しかも、どういうつもりか尋ねると、 「セフレと切れて溜まってただけだ」とうそぶく。 その日から、梶の中に神谷への好奇心と執着が生まれて!? エリート達が凌ぎを削る東都第一銀行本店を舞台に、 バツイチ×隠れビッチのオフィス・ラブ開始！