What's Wrong with Secretary Kim

Lee Young-joon (Park Seo-joon) is the vice-chairman of a major corporation. His world is shaken when, one day, his highly capable secretary, Kim Mi-so (Park Min-young), announces that she is resigning from her position after nine years. Young-joon decides to do whatever he can to persuade Mi-so to change her mind.

• Park Seo-joon as Lee Young-joon / Lee Sung-hyeon{{cite web|url=https://news.sbs.co.kr/news/endPage.do?news_id=N1004648023&plink=SEARCH&cooper=SBSNEWSSEARCH|title=Park Seo Jun to Star in a New Romantic Drama|date=March 2, 2018|website=SBS News|access-date=April 30, 2018|archive-date=May 1, 2018|archive-url=https://web.archive.org/web/20180501094200/https://news.sbs.co.kr/news/endPage.do?news_id=N1004648023&plink=SEARCH&cooper=SBSNEWSSEARCH|url-status=live}}{{cite web|url=http://kpopherald.koreaherald.com/view.php?ud=201805301517367213283_2|title=Park Seo-joon on why he chose 'What's Wrong with Secretary Kim'|date=May 30, 2018|website=Kpop Herald|access-date=May 30, 2018|archive-date=March 28, 2019|archive-url=https://web.archive.org/web/20190328065459/http://kpopherald.koreaherald.com/view.php?ud=201805301517367213283_2|url-status=live}}
• Moon Woo-jin as 9-year-old Lee Sung-hyeon{{cite web|url=http://www.insight.co.kr/news/166088|script-title=ko:누나들 심장에 불 지르고 있는 '박서준 아역' 문우진 군|website=Insight|date=July 13, 2018|access-date=July 19, 2018|language=ko|archive-date=July 19, 2018|archive-url=https://web.archive.org/web/20180719083803/http://www.insight.co.kr/news/166088|url-status=live}}{{efn|When Lee Young-joon was 9 years old, at the time he was kidnapped, his name was Lee Sung-hyeon. It was changed shortly after the kidnapping incident.}}

:Vice-chairman of Yumyung Group. He is handsome and capable, but his narcissism makes it difficult for Mi-so to work with him. He becomes aware of his feelings towards Mi-so after realizing that he might lose her. He can be jealous of Mi-so when she is with his brother or with someone other than him. At one point in his life, he suffered PTSD.

• Park Min-young as Kim Mi-so{{cite web|url=https://news.sbs.co.kr/news/endPage.do?news_id=N1004701744&plink=SEARCH&cooper=SBSNEWSSEARCH|title=Park Min Young to Star in a Romance Drama with Park Seo Jun|date=April 6, 2018|website=SBS News|access-date=April 30, 2018|archive-date=May 1, 2018|archive-url=https://web.archive.org/web/20180501094004/https://news.sbs.co.kr/news/endPage.do?news_id=N1004701744&plink=SEARCH&cooper=SBSNEWSSEARCH|url-status=live}}{{cite web|url=http://kpopherald.koreaherald.com/view.php?ud=201805301518297220761_2|title=Park Min-young talks about starring in rom-com|date=May 30, 2018|website=Kpop Herald|access-date=May 30, 2018|archive-date=December 25, 2020|archive-url=https://web.archive.org/web/20201225123443/http://kpopherald.koreaherald.com/view.php?ud=201805301518297220761_2|url-status=live}}
• Kim Ji-yoo as 5-year-old Kim Mi-so

:A highly skilled secretary who has worked with Young-joon for nine years. She soon reciprocates Young-joon's feelings after realizing that he was a part of her childhood.

;Lee Young-joon's family

• Lee Tae-hwan as Lee Sung-yeon / Morpheus{{cite web|url=http://kpopherald.koreaherald.com/view.php?ud=201804111451029184155_2|title=Lee Tae-hwan to star in 'What's Wrong With Secretary Kim?'|date=April 11, 2018|website=Kpop Herald|access-date=April 30, 2018|archive-date=June 7, 2023|archive-url=https://web.archive.org/web/20230607103028/https://kpopherald.koreaherald.com/view.php?ud=201804111451029184155_2|url-status=live}}
• Bae Gang-yoo as 11-year-old Lee Sung-yeon

:Young-joon's older brother and a famous author. He had a crush on Mi-so.

• Kim Byeong-ok as Chairman Lee{{cite web|url=https://www.hancinema.net/kim-hye-ok-and-kim-byung-ok-in-why-secretary-kim-as-married-couple-117741.html|title=Kim Hye-ok and Kim Byung-ok in 'Why Secretary Kim' as Married Couple|date=April 17, 2018|website=HanCinema|publisher=Star News|access-date=April 30, 2018|archive-date=April 20, 2018|archive-url=https://web.archive.org/web/20180420140036/https://www.hancinema.net/kim-hye-ok-and-kim-byung-ok-in-why-secretary-kim-as-married-couple-117741.html|url-status=live}}
• Go Se-won as young Chairman Lee (Ep. 11–12){{Cite web|url=http://enews.imbc.com/News/RetrieveNewsInfo/236806|script-title=ko:'김비서가 왜 그럴까' 이수경-고세원, 박서준 어린시절 부모 役 카메오 출연!|website=iMBC|language=ko|access-date=June 27, 2018|date=2018-06-26|archive-date=June 27, 2018|archive-url=https://web.archive.org/web/20180627034011/http://enews.imbc.com/News/RetrieveNewsInfo/236806|url-status=live}}

:Young-joon and Sung-yeon's father. Chairman of Yumyung Group.

• Kim Hye-ok as Madame Choi
• Lee Soo-kyung as young Madame Choi (Ep. 11–12)

:Young-joon and Sung-yeon's mother.

;Kim Mi-so's family

• Baek Eun-hye as Kim Pil-nam

:Mi-so's oldest sister who is a psychiatrist.

• Heo Sun-mi as Kim Mal-hee{{cite web|url=http://sports.donga.com/3/all/20180717/91101239/3|script-title=ko:[인터뷰] 허순미 '오디션 때 '발 연기' 했는데 합격했죠'|date=July 18, 2018|website=Sports Donga|language=ko|access-date=July 19, 2018|archive-date=July 19, 2018|archive-url=https://web.archive.org/web/20180719054547/http://sports.donga.com/3/all/20180717/91101239/3|url-status=live}}

:Mi-so's second oldest sister who is a urologist.

• {{ill|Jo Deok-hyun|ko|조덕현}} as Kim Young-man

:Mi-so's father who is a rock musician.

;Yumyung Group

• Kang Ki-young as Park Yoo-sik{{cite web|url=https://www.hancinema.net/kang-ki-young-hwang-chan-sung-pyo-ye-jin-and-kim-yewon-join-why-secretary-kim-117539.html|title=Kang Ki-young, Hwang Chan-sung, Pyo Ye-jin, and Kim Yewon Join 'Why Secretary Kim'|date=April 11, 2018|website=HanCinema|publisher=Asia Today|access-date=April 30, 2018|archive-date=November 18, 2020|archive-url=https://web.archive.org/web/20201118133434/https://www.hancinema.net/kang-ki-young-hwang-chan-sung-pyo-ye-jin-and-kim-yewon-join-why-secretary-kim-117539.html|url-status=live}}

:President of Yumyung Group, the second-in-command after the vice-chairman. Young-joon's best friend back from university. He is Young-joon's confidant and provides him with much advice drawn from personal experience. He is still in love with his ex-wife.

• Hwang Chan-sung as Go Gwi-nam

:A deputy in Yumyung Group who later transfers to Chi-in's group. He is known for his handsome looks, elite education, being a workaholic, and extreme frugality.

• Pyo Ye-jin as Kim Ji-a

:The rookie secretary to the Vice-Chairman, being groomed to replace Mi-so who has announced her resignation.

• Kim Ye-won as Sul Ma-eum

:Yoo-sik's secretary who is clumsy and careless, often comparing unfavorably to Mi-so.

• Hwang Bo-ra as Bong Se-ra{{cite web|url=http://tenasia.hankyung.com/archives/1472681|script-title=ko:황보라, '김비서가 왜 그럴까' 출연 '자칭 팜므파탈'|date=April 18, 2018|website=TenAsia|language=ko|access-date=June 7, 2018|archive-date=June 12, 2018|archive-url=https://web.archive.org/web/20180612143059/http://tenasia.hankyung.com/archives/1472681|url-status=dead}}

:A section head in Chi-in's team, who initially coveted the open position of secretary to the vice-chairman, and initially had a crush on Gwi-nam.

• {{ill|Lee Yoo-joon (actor)|lt=Lee Yoo-joon|ko|이유준}} as Jung Chi-in{{cite web|url=http://www.sedaily.com/NewsView/1RYAXQ63VW/GL01|script-title=ko:'김비서가 왜 그럴까' 황보라-강홍석-이유준, 신스틸러 군단 출격|date=April 18, 2018|website={{ill|The Seoul Economic Daily|ko|서울경제}}|language=ko|access-date=July 19, 2018|archive-date=June 5, 2023|archive-url=https://web.archive.org/web/20230605224351/https://www.sedaily.com/NewsView/1RYAXQ63VW/GL01|url-status=live}}

:A team leader in the Vice-Chairman's office, who frequently organizes after-work gatherings.

• {{ill|Lee Jung-min (actor)|lt=Lee Jung-min|ko|이정민 (1989년)}} as Lee Young-ok

:A member of Chi-in's team, who has a strict adherence to dieting.

• {{ill|Kim Jung-woon (actor)|lt=Kim Jung-woon|ko|김정운 (1981년)}} as Park Joon-hwan

:A member of Chi-in's team, who is bespectacled and brags about his university education.

• Kang Hong-seok as Yang Cheol

:A secretary and chauffeur to the Vice-Chairman, he is a man of few words. He ends up bailing out Se-ra several times.

• Bae Hyun-sung as Yun-sung Bae, an intern staff.

• Hong Ji-yoon as Oh Ji-ran, a famous model and onetime girlfriend of Young-joon (Ep. 1-3 & 16){{cite web|url=http://news.chosun.com/site/data/html_dir/2018/05/31/2018053100970.html|script-title=ko:[공식]홍지윤, '김비서가 왜 그럴까' 캐스팅…박서준-박민영과 호흡|date=May 31, 2018|website=The Chosun Ilbo|language=ko|access-date=July 19, 2018|archive-date=July 19, 2018|archive-url=https://web.archive.org/web/20180719054345/http://news.chosun.com/site/data/html_dir/2018/05/31/2018053100970.html|url-status=live}}
• Choi Na-mu as woman at the Spanish Embassy party (Ep. 1)
• Shin Joo-yeon as Kim Mi-so's friend (Ep. 1)
• Park Byung-eun as Park Byung-eun, Kim Mi-so's blind date (Ep. 3){{cite web|url=http://news.mk.co.kr/newsRead.php?year=2018&no=375713|script-title=ko:박병은, '김비서가 왜 그럴까' 특별출연..4차원 소개팅男으로 |date=June 14, 2018|website=MK News|language=ko}}
• Lee Do-yeon as a reporter who interviewed Morpheus (Ep. 4)
• Lee Chang as center director of the Art Center (Ep. 4)
• {{ill|Choi Hee|ko|최희}} as the host of the book concert (Ep. 8)
• Jung Soo-young as an agency staff (Ep. 9)
• Mihal Ashminov as a chef at a restaurant (Ep. 9)
• Seo Hyo-rim as Choi Seo-jin, Park Yoo-sik's ex-wife (Ep. 9, 11–12 & 16){{Cite news|url=https://entertain.naver.com/now/read?oid=213&aid=0001046025|script-title=ko:'김비서' 측 '서효림, 강기영 전 와이프로 오늘(4일) 첫 등장' [공식]|access-date=July 4, 2018|website=TV Report|language=ko|archive-date=June 5, 2023|archive-url=https://web.archive.org/web/20230605224350/https://entertain.naver.com/now/read?oid=213&aid=0001046025|url-status=live}}
• Lee Min-ki as young Mi-so's father (Ep. 10){{cite web|url=http://www.newsen.com/news_view.php?uid=201806291750408010|title='김비서' 측 '이민기-정소민 카메오 촬영 완료' 박준화PD와 의리(공식)|date=June 29, 2018|website=Newsen|language=ko|access-date=June 29, 2018|archive-date=November 25, 2020|archive-url=https://web.archive.org/web/20201125085700/https://www.newsen.com/news_view.php?uid=201806291750408010|url-status=live}}{{efn|name=BecauseThisIsMyFirstLife|The character appears in a short crossover scene, alluding Director Park Joon-hwa's previous work Because This Is My First Life (2017) where the character originally appears.}}
• Jung So-min as young Mi-so's mother (Ep. 10){{efn|name=BecauseThisIsMyFirstLife}}
• {{ill|Choi Hyun-woo|ko|최현우 (1978년)}} as Magician (Ep. 10)
• Son Seong-yoon as the kidnapper (Ep. 11–12)
• Gil Hae-yeon as the woman at the reserved parking space (Ep. 12)
• {{ill|Jung Woo-suk (actor)|lt=Jung Woo-suk|ko|정우석}} as Psychiatrist (Ep. 12)
• Park Na-rae as the lewd devil (voice) (Ep. 13)
• Jung Yu-mi as Jung Yu-mi, a childhood friend and former classmate of Lee Young-joon (Ep. 14){{cite web|url=http://www.xportsnews.com/jenter/?ac=article_view&entry_id=996465|script-title=ko:[공식입장] '윤식당' 박서준과 재회'...정유미, '김비서' 카메오 출연|date=July 12, 2018|website=Xports News|language=ko|access-date=July 14, 2018|archive-date=November 29, 2020|archive-url=https://web.archive.org/web/20201129144245/http://www.xportsnews.com/jenter/?ac=article_view&entry_id=996465|url-status=live}}
• Kim Ga-yeon and Lee Se-young as the staff who talked behind Kim Mi-so's back (Ep. 14)
• Lee Byung-joon as a wedding dress designer (Ep. 16)

Much of the visual styling of the series protagonists have referenced the comic version's cues, including clothing designs and reenacting the comic cover for the drama's promotional stills and images.{{cite web|url=http://pop.heraldcorp.com/view.php?ud=201805291300571121962_1|title=박민영x박서준. 웹툰 찢고 나왔다..'김비서가 왜 그럴까' 스페셜 포스터|trans-title=Park Min-young: "I don't know what to do"... "What's Wrong with Secretary Kim" special poster|date=May 29, 2018|website=Herald Corporation|language=ko|access-date=May 29, 2018|archive-date=May 30, 2018|archive-url=https://web.archive.org/web/20180530034724/http://pop.heraldcorp.com/view.php?ud=201805291300571121962_1|url-status=live}}

The first script reading was held on April 10, 2018, at Studio Dragon in Sangam-dong, Seoul, South Korea.{{cite web|url=http://enews.imbc.com/News/RetrieveNewsInfo/231898|script-title=ko:'김비서가 왜 그럴까' 박서준-박민영-이태환 대본 리딩 현장 포착! '이 조합 퍼펙트'|trans-title="What's Wrong with Secretary Kim"'s Park Seo-joon and Park Min-young capture the script's scene! "Perfect combination"|date=April 20, 2018|website=iMBC|language=ko|access-date=April 30, 2018|archive-date=December 9, 2020|archive-url=https://web.archive.org/web/20201209162702/http://enews.imbc.com/News/RetrieveNewsInfo/231898|url-status=live}}

Maserati Korea provided the cars of Lee Young-joon, Lee Sung-yeon and Yumyong Group. The cars featured in the show include a Maserati Ghibli (driven by Yoo-sik),{{cite web|url=https://www.imcdb.org/vehicle_1156574-Maserati-Ghibli-M157-2018.html|title=2018 Maserati Ghibli [M157] in Kimbiseoga wae geureolkka, TV Series, 2018 IMDB Ep. 01.06|date=July 6, 2018|website=IMCDb|access-date=December 26, 2020|archive-date=April 26, 2021|archive-url=https://web.archive.org/web/20210426124726/https://www.imcdb.org/vehicle_1156574-Maserati-Ghibli-M157-2018.html|url-status=live}} a Maserati Levante (driven by Sung-yeon),{{cite web|url=https://www.imcdb.org/vehicle_1156574-Maserati-Ghibli-M157-2018.html|title=2017 Maserati Levante [M161] in Kimbiseoga wae geureolkka, TV Series, 2018 IMDB Ep. 01.08|date=July 6, 2018|website=IMCDb|access-date=December 26, 2020|archive-date=April 26, 2021|archive-url=https://web.archive.org/web/20210426124726/https://www.imcdb.org/vehicle_1156574-Maserati-Ghibli-M157-2018.html|url-status=live}} a Maserati GranCabrio (driven by Young-joon), and a Maserati Quattroporte (driven by Young-joon).{{cite web|url=https://www.imcdb.org/vehicle_1156573-Maserati-Quattroporte-M156-2017.html|title=2017 Maserati Quattroporte VI [M156] in Kimbiseoga wae geureolkka, TV Series, 2018 IMDB Ep. 01.01|date=July 6, 2018|website=IMCDb|access-date=December 26, 2020|archive-date=April 26, 2021|archive-url=https://web.archive.org/web/20210426124715/https://www.imcdb.org/vehicle_1156573-Maserati-Quattroporte-M156-2017.html|url-status=live}}{{cite web|url=http://www.carvillage.co.kr/named/m/history/board_view.asp?CD_BD_idx=|title=김비서가 왜 그럴까 - 마세라티 콰트로포르테 그란루쏘|trans-title=What's Wrong with Secretary Kim - Maserati Quattroporte GranLusso|date=August 6, 2018|website=CarVillage|language=ko|access-date=December 26, 2020|archive-date=January 18, 2021|archive-url=https://web.archive.org/web/20210118123657/http://www.carvillage.co.kr/named/m/history/board_view.asp?CD_BD_idx=|url-status=dead}}

The press conference for the drama was held on May 30, 2018, at the Times Square in Seoul with the attendance of the main cast and crew.{{cite web|url=http://en.asiatoday.co.kr/view.php?key=20180530001605502|title='What's Wrong With Secretary Kim"' holds press conference|date=May 30, 2018|website=Asia Today|access-date=June 6, 2018|archive-date=November 20, 2020|archive-url=https://web.archive.org/web/20201120090547/http://en.asiatoday.co.kr/view.php?key=20180530001605502|url-status=live}}{{cite web|url=http://sports.chosun.com/news/ntype.htm?id=201805310100271840021259&servicedate=20180530|script-title=ko:김비서 박서준 '박민영 '하이킥' 때부터 팬, 케미 좋다'|date=May 30, 2018|website=Sports Chosun|language=ko|author=Baek Ji-eun|access-date=May 31, 2018|archive-date=June 12, 2018|archive-url=https://web.archive.org/web/20180612142353/http://sports.chosun.com/news/ntype.htm?id=201805310100271840021259&servicedate=20180530|url-status=live}}{{cite web|url=http://www.sedaily.com/NewsView/1RZQFUM3O1|script-title=ko:[현장] '김비서' 이태환, '실제는 95년생, 30대 역할 부담 없다면 거짓말'|date=May 30, 2018|website=SE Daily|language=ko|access-date=May 31, 2018|archive-date=June 3, 2018|archive-url=https://web.archive.org/web/20180603022353/http://www.sedaily.com/NewsView/1RZQFUM3O1|url-status=live}}

{{Infobox album

| name = What's Wrong with Secretary Kim
OST

| type = Soundtrack

| artist = Various artists

| cover =

| alt =

| released = 2018

| recorded =

| venue =

| studio =

| genre = Soundtrack

| length =

| language = {{hlist|Korean|English}}

| label = Bon Factory Worldwide, kakao M

| producer = Moon Seok-hwan, Oh Kwang-hee

| prev_title =

| prev_year =

| next_title =

| next_year =

}}

{{track listing

| headline = Released on {{start date|2018|6|14}}

| extra_column = Artist

| title1 = Love Virus

| note1 =

| lyrics1 = ZigZag Note, Kim Myeong-shin

| music1 = ZigZag Note, Kim Myeong-shin

| extra1 = Kihyun (Monsta X), SeolA (Cosmic Girls)

| length1 = 03:27

| title2 = Love Virus (Inst.)

| note2 =

| music2 = ZigZag Note, Kim Myeong-shin

| length2 = 03:27

| total_length = 06:54

}}

{{track listing

| headline = Released on {{start date|2018|6|20}}

| extra_column = Artist

| title1 = It's You

| note1 =

| lyrics1 = Good Choice, Yoda

| music1 = Kim Se-jin, Midnight

| extra1 = Jeong Se-woon

| length1 = 03:39

| title2 = It's You (Inst.)

| note2 =

| music2 = Kim Se-jin, Midnight

| length2 = 03:39

| total_length = 07:18

}}

{{track listing

| headline = Released on {{start date|2018|06|21}}

| extra_column = Artist

| title1 = Wanna Be

| note1 =

| lyrics1 = ZigZag Note

| music1 = ZigZag Note

| extra1 = GFriend

| length1 = 03:09

| title2 = Wanna Be (Inst.)

| note2 =

| music2 = ZigZag Note

| length2 = 03:09

| total_length = 06:18

}}

{{track listing

| headline = Released on {{start date|2018|6|27}}

| extra_column = Artist

| title1 = Just A Little Bit More

| note1 = 조금만 더

| lyrics1 = ZigZag Note, Kim Young-sung, Good Choice

| music1 = ZigZag Note, Kim Young-sung

| extra1 = Jinho (Pentagon), Rothy

| length1 = 03:25

| title2 = Just A Little Bit More (Inst.)

| note2 = 조금만 더 (Inst.)

| music2 = ZigZag Note, Kim Young-sung

| length2 = 03:25

| total_length = 06:50

}}

{{track listing

| headline = Released on {{start date|2018|6|28}}

| extra_column = Artist

| title1 = Because I Only See You

| note1 = 그대만 보여서

| lyrics1 = Good Choice, Red Socks

| music1 = Red Socks

| extra1 = Kim Na-young

| length1 = 03:40

| title2 = Because I Only See You (Inst.)

| note2 = 그대만 보여서 (Inst.)

| music2 = Red Socks

| length2 = 03:40

| total_length = 07:20

}}

{{track listing

| headline = Released on {{start date|2018|7|04}}

| extra_column = Artist

| title1 = Why Am I Like This

| note1 = 왜 이럴까

| lyrics1 = Moon Sung-nam, Im Joo-yeon

| music1 = Moon Sung-nam, Im Joo-yeon

| extra1 = Lee Da-yeon

| length1 = 02:40

| title2 = Why Am I Like This (Inst.)

| note2 = 왜 이럴까 (Inst.)

| music2 = Moon Sung-nam, Im Joo-yeon

| length2 = 02:40

| total_length = 05:20

}}

{{track listing

| headline = Released on {{start date|2018|7|05}}

| extra_column = Artist

| title1 = In The End

| note1 = 토로

| lyrics1 = Kang Myeong-shin, ZigZag Note, Noh Eun-jong

| music1 = ZigZag Note, Noh Eun-jong

| extra1 = Yun Ddan Ddan

| length1 = 04:25

| title2 = In The End (Inst.)

| note2 = 토로 (Inst.)

| music2 = ZigZag Note, Noh Eun-jong

| length2 = 04:25

| total_length = 08:50

}}

{{track listing

| headline = Released on {{start date|2018|7|12}}

| extra_column = Artist

| title1 = Words Being Said For The First Time

| note1 = 처음 하는 말

| lyrics1 = Good Choice

| music1 = Kim Se-jin, Midnight

| extra1 = Song Yuvin (Myteen)

| length1 = 03:56

| title2 = Words Being Said For The First Time (Inst.)

| note2 = 처음 하는 말 (Inst.)

| music2 = Kim Se-jin, Midnight

| length2 = 03:56

| total_length = 07:52

}}

{{track listing

| extra_column= Artist

| headline = Disc 2:

| title1 = Secretary (Opening Theme)

| note1 =

| extra1 = Various Artists

| length1 = 1:49

| title2 = Alsong Big Band

| note2 =

| extra2 = Various Artists

| length2 = 1:53

| title3 = Art of Love

| note3 =

| extra3 = Various Artists

| length3 = 3:02

| title4 = Baby Elephant

| note4 =

| extra4 = Various Artists

| length4 = 2:17

| title5 = Big Bean

| note5 =

| extra5 = Various Artists

| length5 = 2:28

| title6 = Edge

| note6 =

| extra6 = Various Artists

| length6 = 2:08

| title7 = Funny Sunny

| note7 =

| extra7 = Various Artists

| length7 = 1:26

| title8 = Gaint Food

| note8 =

| extra8 = Various Artists

| length8 = 1:43

| title9 = Groove Company

| note9 =

| extra9 = Various Artists

| length9 = 1:21

| title10 = Kim Possible

| note10 =

| extra10 = Various Artists

| length10 = 1:47

| title11 = Lonely Boss

| note11 =

| extra11 = Various Artists

| length11 = 1:59

| title12 = Lovely Girl

| note12 =

| extra12 = Various Artists

| length12 = 1:31

| title13 = Loving You

| note13 =

| extra13 = Various Artists

| length13 = 3:19

| title14 = Mad Walk

| note14 =

| extra14 = Various Artists

| length14 = 2:43

| title15 = Man in Black

| note15 =

| extra15 = Various Artists

| length15 = 2:43

| title16 = New Recruit

| note16 =

| extra16 = Various Artists

| length16 = 1:48

| title17 = Nothing to Lose

| note17 =

| extra17 = Various Artists

| length17 = 3:02

| title18 = Old Story

| note18 =

| extra18 = Various Artists

| length18 = 2:40

| title19 = Pacific

| note19 =

| extra19 = Various Artists

| length19 = 1:58

| title20 = Squeeze

| note20 =

| extra20 = Various Artists

| length20 = 1:29

| title21 = Tambara

| note21 =

| extra21 = Various Artists

| length21 = 1:46

| title22 = Think Srtings

| note22 =

| extra22 = Various Artists

| length22 = 3:04

| title23 = Tempest

| note23 =

| extra23 = Various Artists

| length23 = 2:36

| title24 = Why Brass Mind

| note24 =

| extra24 = Various Artists

| length24 = 3:32

| title25 = Why Chomic Lim

| note25 =

| extra25 = Various Artists

| length25 = 2:40

| title26 = Why Slow Piano Mode

| note26 =

| extra26 = Various Artists

| length26 = 3:21

| total_length = 58:05

}}

{{Television ratings graph

| title = What's Wrong with Secretary Kim

| refs = Audience measurement performed nationwide by Nielsen Media Research.{{cite web|url=http://www.nielsenkorea.co.kr/tv_terrestrial_day.asp?menu=Tit_1&sub_menu=3_1&area=00&begin_date=20180606|title=Nielsen Korea|work=AGB Nielsen Media Research|language=ko|access-date=August 25, 2020|archive-date=November 1, 2020|archive-url=https://web.archive.org/web/20201101011327/http://www.nielsenkorea.co.kr/tv_terrestrial_day.asp?menu=Tit_1&sub_menu=3_1&area=00&begin_date=20180606|url-status=live}}

| average = y

| width = 300

| height = 200

| country = South Korea

| -

|1.510

|1.480

|2.002

|1.727

|1.783

|1.897

|1.926

|2.058

|2.002

|2.231

|2.383

|2.348

|2.094

|2.234

|2.014

|2.348

|2.002

}}

In November 2023, ABS-CBN announced a Philippine remake for the series. It premiered on March 18, 2024 on Viu.{{cite web|url=https://news.abs-cbn.com/entertainment/11/21/23/kim-paulo-to-star-in-pinoy-version-of-hit-korean-drama|title=Kim Chiu, Paulo Avelino to star in PH adaptation of 'What's Wrong With Secretary Kim'|date=November 21, 2023|website=ABS-CBN News|access-date=November 21, 2023|archive-date=November 29, 2023|archive-url=https://web.archive.org/web/20231129015116/https://news.abs-cbn.com/entertainment/11/21/23/kim-paulo-to-star-in-pinoy-version-of-hit-korean-drama|url-status=live}}

Thailand will produce an adaptation of the series titled Dear My Secretary and is set to premiere in 2025.{{Cite web |title=True CJ begins three new Thai TV series; Korean adaptations scheduled for 2024 {{!}} ContentAsia |url=https://www.contentasia.tv/news/true-cj-begins-three-new-thai-tv-series-korean-adaptations-scheduled-2024 |access-date=November 21, 2023 |website=www.contentasia.tv |archive-date=November 21, 2023 |archive-url=https://web.archive.org/web/20231121151413/https://www.contentasia.tv/news/true-cj-begins-three-new-thai-tv-series-korean-adaptations-scheduled-2024 |url-status=live }}

China will have its own adaptation title My Dear Secretary and will release in 2025.{{Cite web |date=2024-04-17 |title=Korean drama "What's wrong with Secretary Kim?" will be remade by China - Vietnam.vn |url=https://www.vietnam.vn/en/phim-truyen-hinh-han-quoc-thu-ky-kim-sao-the-se-duoc-trung-quoc-lam-lai/ |access-date=2024-12-03 |language=en |archive-date=December 4, 2024 |archive-url=https://web.archive.org/web/20241204000430/https://www.vietnam.vn/en/phim-truyen-hinh-han-quoc-thu-ky-kim-sao-the-se-duoc-trung-quoc-lam-lai/ |url-status=live }}{{additional citation needed|date=December 2024}}

{{notelist}}

{{Reflist|30em}}

• {{official website|http://program.tving.com/tvn/secretarykim/}} {{in lang|ko}}
• {{IMDb title|id=tt8242904}}
• {{Hancinema drama|Why_Secretary_Kim}}
• {{Netflix title}}
• [https://www.tappytoon.com/series/whysecretarykim/1 What's Wrong with Secretary Kim webtoon] at TappyToon

{{Works by Studio Dragon}}

{{TvN (South Korean TV channel) television dramas (2006–2019)}}

Category:Korean-language television shows

Category:TvN (South Korean TV channel) television dramas

Category:2018 South Korean television series debuts

Category:Television series by Studio Dragon

Category:Television shows based on manhwa

Category:South Korean romantic comedy television series

Category:Television shows based on South Korean novels

Category:2018 South Korean television series endings

Category:South Korean workplace television series

Category:Television series by Bon Factory Worldwide