Yoon-soo gets overwhelmed with mixed and complex emotions after hearing Seung-yoo profess his love for her. Kyu-young notices Seung-yoo’s love for Yoon-soo and uses it to blackmail him. Meanwhile, Yoo Hye-mi takes things into her hands for the midterms Ye-rin is about to face. However, Yoon-soo finds something suspicious in Ye-rin’s midterm answer sheet.