I was forced to work overtime every day because I was harassed by an education officer at my workplace. One day, I was alone with my ambitious senior (Kano-san), who could work beautifully and looked younger than me but was the head of the business department! The virgin was placed in a position where she couldn't defend herself, in a place that could see the valley... I couldn't stand the way my senior seduced me cunningly, and I crossed the line. The pleasures experienced for the first time kept me tossing and turning until morning.