2020
S01E16 finale
A sexual scandal between a math teacher and a student in a prestigious high school ended in tragedy. 4 years later they meet again, now as adults, to reveal the corruption in school and to regain one's reputation as a teacher.
Seung-Yoo tries to bring Yoon-soo out into the world from her rut by getting close to her heart, just the way she helped him. Meanwhile, Yoon-soo keeps her identity hidden while collecting evidence of Noh Jung-ah's corruption. However, when Yoon-soo's identity is in danger of getting exposed, Seung-yoo stands in front of her.