Joo-hee, a perfect student and the hottest girl in school, is majoring in pure arts and dreams of going to France. She's a role model for everyone as she is beautiful and talented. Jeong-woo, her fellow schoolmate and a web-toon writer wannabe, and has a crush on Joo-hee but he doesn't dare approach her.<br>
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One day, Jeong-woo finds out that Joo-hee is a student by day, but a "ten-pro" call girl at night. They become close now that they share a secret. Materially and emotionally, Jeong-woo helps Joo-hee as she wants to graduate with lots of money and with high grades. However, Jeong-woo's first girlfriend, Dong-hwa, also finds out about Joo-hee's secret, leading to all sorts of rumors and X-files about Joo-hee spreading.<br>
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(Source: HanCinema, edited)

The Senior Class