Young-shim Kim Yik-tae as Jang Jang-soo, Young-shim's father Park Myung-shin as Kim Young-ja, Young-shim's mother Others Shin Dong-mi as Choi Jung-eun, Anthony's manager Shin Dong-hoon as Reporter Jung Jo Hyun-sik as Driver Special appearance Han Sun-hwa as Jung Da-young Golden Child as idol group 'Master' Heo Ji-woong as Variety Show Host Shim Hyung-tak as Terius / Jung Chang-hoon KNK as idol group 'Boys Be Ambitious' (young age) Kim So-yeon as Director Production The drama's working title was No Sex and the City. It is the debut of Lee Sun-hye as main writer, as she was a junior writer for tvN's Reply series. Directing the series was Lee Dong-yoon (Fated To Love You, The Queen's Classroom, Happy Home). Due to a strike at MBC, the series did not air on September 25, 2017 as originally planned. Original soundtrack Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 Ratings In the table below, represent the lowest ratings and represent the highest ratings. NR denotes that the drama did not rank in the top 20 daily programs on that date. Awards and nominations Notes References External links 2017 South Korean television series debuts Korean-language television shows MBC TV television dramas South Korean romantic comedy television series 2017 South Korean television series endings Television series by Studio Santa Claus Entertainment