Guest Stars Kim Gab Soo as Yoon Jae Ho Jun Hye Jin as Maeng Soo A Hong Min Gi as Seok Ji Won (high-school days) Oh Ye Ju as Yoon Ji Won (high-school days) Lee Byung Joon as Seok Gyeong Tae Kim Hyun Mok as Lee Ki Ha Kim Jung Young as Han Young Eun
