Mion Sonoda works in the general affairs department of an underwear manufacturer.She has a strong upward desire to demonstrate her inherent ability.She was able to move to the long-awaited product development department, and she was selected as a project member for the "new underwear presentation".Until then, she had been the target of sexual harassment by her business partners and senior bosses, and even though she was forced to perform sexual acts that imitated her, she accepted it with tears in her eyes in order to get a promotion, but further trials attacked her... Shame at a black company. Continuing to endure shame... someday I will feel pleasure...?