"You were a pervert?" Yoon Seyoung, the top student in the Business Administration department, has a secret: She secretly observes and records Han Ikgyeol, the most popular guy on campus. Then one day, her observation journal falls into the hands of the subject himself. "'Today, Han Igyeol played basketball. Even when I wasn't aroused, it was that big...'" "S-Sorry! I'm really sorry!" With the explicit words echoing loudly down the hallway, Seyoung's face turned pale. "Just saying sorry won't cut it. Especially after having perverted thoughts about me every day." "......" "Right?"