Taeyoung, who is always at the top of her class, is always surrounded by male students who want to take her. Until she puts up an iron wall and rejects their advances… Namju, who is in the same department remained as Taeyoung’s friend, but he’s always looking for an opportunity, but Taeyoung never showed any signs of liking or disliking him. On the other hand, Woori, the 3rd-time test taker who has no interest in studying and a childhood friend of Namju for the past ten years, was reminded of her days of being Taeyoung’s classmate. She tells him about a shocking secret that might help to dominate her…