Kaede, who wears glasses and looks plain, actually has hidden big breasts. On her secret SNS account, she takes off her glasses and posts sexy, erotic pictures to enjoy secretly in the office. When a subordinate reports her secret account, Shimokawa, the sexually harassing department manager, plans to take her on a business trip. At a dinner party after work, Shimokawa relentlessly forces her to drink alcohol, using the secret account as a bait. Kaede gets drunk and ends up sharing a hotel room... She is tricked by her middle-aged boss and made to cum all night long in an unstoppable sexual encounter.