Kyung-yi suspects there's more to this accident than meets the eye. Reuniting with an old classmate, Song Yi-kyung hears about a former teacher's fate.
Quest roles:
Park Ji-bin(Heo Hyeon-tae), Choi Young-Joon(Jang Seong-u), Kim Kang-hyun(Kim Min-gyu), Bae Hae-Sun(Jung Jeong-yeon), Jeong Seok-yong(Mr. Kim), Park Ye-yeong(Yoon Jae-yeong)