Do Ha-na saves Mun from the attacks of a powerful demon with a malicious tongue. Kim Jeong-yeong helps Mo-tak look into his last detective case.
Quest roles:
Lee Do-gyeong(Jeon Gi-hwan), Cha Si-won(Lim Jae-cheol), Kwon Hyuk(Bae Sang-pil), Kim Yi-kyeong(Kim Yeong-nim), Park Seo-yeon(Kim Dan-o), Lee Ye-bit(Kim Dan-bi), Son Kang-gook(Choi Su-ryong), Park Jin-soo(Chief Pyo), Song Ji-woo(Do Ha-yeong), Jeong Ji-ho(Ji Hyeong-u), Song Kyung-hwa(Do Ha-na's Mother), Park Sang-hyeok(Do Ha-na's Father), Jang Hyun-jin(Detective)