A G-cup new employee, Uta Hayano, who unexpectedly finds herself sharing a room with a middle-aged sexual harasser whom she despises on a business trip... and feels unintentionally touched by the adulterous intercourse that lasts until the wee hours of the morning.

Titulo original: SSIS-386 出張先で軽蔑している中年セクハラ上司とまさかの相部屋に… 朝まで続く絶倫性交に不覚にも感じてしまったGカップ新入社員 はやのうた

Uta' is a new employee who despises her sexually harassing middle-aged boss whom she hates to death. She was dating a senior employee at the same company and leading a happy life, but one day, on a business trip, she is drunkenly crushed by the boss she hates. When she woke up, she found herself alone in a hotel room with him. She was raped and filmed on her phone, and she used it as a story to get her big tits rubbed relentlessly and pistoned until her pussy went crazy. She finds herself hooked on the male's technique and becomes a woman who shakes her own hips.