Guest Stars Lee Hae Young as Shin Young Joon Ahn So Yo as Kim Gyung Ran Jun Jin Oh as Tailing Man Son Sook as Landlady Park Ji Ah as Jung Mi Hee Ryu Seung Hyun as Lee Suk Jae Son Kang Gook as Detective Choi Jun Soo Ah as Sung Han's School's Nurse Heo Dong Won as Choo Jung Ho Choi Soo In as Lee Sun Ah Yoon Sung Won as Teacher Kang Kim Nam Ho as Manager Han Lee Si Young as Plastic Surgery Clinic Nurse Jung Hye Kyung as Convenience Store Owner Ahn Soo Ho as Semyeong Elementary Janitor Lee Young Jin as Hotel Manager Yoon Hyo Shik as Furniture Delivery Man Chae Song Hwa as Teacher Choi Kim Mi Ra as Teacher Kim