The series tells the story of Yoon Hyun-woo (Song Joong-ki), a loyal higher-up employee working for chaebol Soonyang Group, who was betrayed and murdered by a member of the Soonyang family to cover up a tax evasion scheme. Hyun-woo later wakes up in 1987 discovering that he has been reincarnated into the body of Jin Do-jun, youngest grandson of the Soonyang family. Using these circumstances to his advantage, he starts his revenge by plotting a hostile takeover of Soonyang Group. The background to the story is the power of the chaebols and the 1997 Asian Financial crisis.
In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.
This drama aired on a cable channel/pay TV which normally has a relatively smaller audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC, and EBS).
The over-the-top (OTT) streaming service, Viu, who bought the rights to air the show under the Viu Original label in all markets outside South Korea,[10] unveiled that they will remake the series in Thai. The series is to be released in 2024.[54]
^ abKim, Hye-jeong (October 14, 2021). 김영재 '재벌집 막내아들' 합류 [공식] [Kim Young-jae joins 'the youngest son of a conglomerate' [Official]]. Sports Kyunghyang. Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^ abHong, Se-young (July 20, 2021). 송중기·이성민 '재벌집 막내아들' 출연확정 [공식] [Song Joong-ki and Lee Sung-min confirmed to appear in 'The Youngest Son of a Conglomerate' owner of miracle shares [Official]]. Sports Donga (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^Park, Sang-hoo (September 16, 2021). JTBC 측 "김강훈, '재벌집 막내아들' 합류 확정" [공식입장] [JTBC side "Kim Kang-hoon confirmed to join 'the youngest son of a conglomerate'" [Official position]]. TV Daily (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021.
^Moon, Ji-yeon (June 2, 2021). [단독]신현빈, '재벌집 막내아들' 주인공 발탁...송중기 만난다 [[Exclusive] Shin Hyun-bin, 'the youngest son of a conglomerate' selected as the main character...Meet Song Joong-ki]. Sports Chosun (in Korean). Archived from the original on December 15, 2021. Retrieved December 23, 2021 – via Naver.
^ abcKang, Hyo-jin (September 28, 2022). 재벌집 막내아들' 송중기→티파니 영, 입 떡 벌어지는 라인업 '하반기 첫 방송'[공식] [The youngest son of a conglomerate' Song Joong-ki → Tiffany Young, mouth-watering lineup 'First broadcast of the second half' [Official]]. SPOTV News (in Korean). Archived from the original on September 28, 2022. Retrieved September 28, 2022 – via Naver.
^Jo, Eun-mi (October 19, 2021). 김정난, '재벌집 막내아들' 출연 확정..송중기·이성민·신현빈과 호흡(공식) [Kim Jung-nan confirmed to appear in 'The Youngest Son of a Conglomerate'...Breathing with Song Joong-ki, Lee Seong-min, and Shin Hyun-bin (official)]. Herald POP (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^Ham, Na-yan (June 2, 2021). [단독] 김남희, '재벌집 막내아들' 출연...송중기와 호흡 [[Exclusive] Kim Nam-hee to appear in 'The Youngest Son of a Conglomerate'...Song Joong-ki and breathing]. Sports Donga (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^Park, Soo-in (November 15, 2022). 슈룹' 심소군 문성현 '재벌집 막내아들' 캐스팅, 김남희 아역된다 [Shrub' Shim So-gun, Moon Seong-hyun, 'The youngest son of a conglomerate' cast, Kim Nam-hee child role]. Newsen (in Korean). Archived from the original on November 15, 2022. Retrieved November 15, 2022 – via Naver.
^Ha, Su-jeong (September 9, 2021). 박지현, '재벌집 막내아들' 캐스팅..당돌한 재벌가 장녀된다 [공식] [Park Ji-hyun, cast for 'the youngest son of a conglomerate'...The Chaebol Lawyer]. OSEN [ko] (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^Lee, Min-ji (August 12, 2021). '재벌집 막내아들' 조한철 합류, 빈센조 송중기와 재회(공식) ['The youngest son of a conglomerate' joins Jo Han-cheol and reunites with Vincenzo Song Joong-ki (official)]. Newsen (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^Yoo, Jung-min (November 26, 2021). 서재희, '재벌집 막내아들' 캐스팅 확정...재벌가 며느리 役 으로 송중기와 호흡 [Seo Jae-hee, casting confirmed for 'the youngest son of a chaebol family'...Breathing with Song Joong-ki as the daughter-in-law of a chaebol family]. Ten Asia (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^Kim, Da-eun (November 12, 2022). 재벌집 막내아들' 몰입감 폭발시킬 '믿보배' 연기 전쟁 [The youngest son of a conglomerate' smoke war of 'trusted treasure' that will explode the immersion]. Ilgan Sports (in Korean). Archived from the original on November 13, 2022. Retrieved November 13, 2022 – via Naver.
^Kim, Myung-mi (October 22, 2021). 김신록 '재벌집 막내아들' 출연 확정, 이성민 외동딸 변신(공식입장) [Kim Shin-rok confirmed to appear in 'The Youngest Son of a Conglomerate', Lee Sung-min's only daughter transformed (official position)]. Newsen (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^Lee, Seung-gil (November 11, 2021). 김도현, '재벌집 막내아들' 합류...송중기 만난다 [Kim Do-hyun joins 'the youngest son of a conglomerate'...Meet Song Joong-ki]. My Daily (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^Lee, Seung-gil (October 14, 2021). 김영재가 송중기 아버지라고? '재벌집 막내아들' 출연확정 [공식] [Kim Young-jae is Song Joong-ki's father? Confirmed to appear in 'The Youngest Son of a Conglomerate' [Official]]. My Daily (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^Han, Hae-seon (September 18, 2021). [단독]강기둥, 송중기 형 된다..'재벌집 막내아들' 출연 [[Exclusive] Ki-dong Kang and Song Joong-ki become hyung..Appearing in 'The Youngest Son of a Conglomerate']. Star News (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^Yeon, Hwi-seon (May 24, 2022). 강기둥, '재벌집 막내아들' 출연...송중기X신현빈과 호흡 [공식] [Kang Ki-dong, appearing in 'The Youngest Son of a Conglomerate'... Breathing with Song Joong-ki X Shin Hyun-bin [Official]]. OSEN [ko] (in Korean). Archived from the original on May 24, 2022. Retrieved May 24, 2022 – via Naver.
^Park, So-young (November 19, 2022). 덮중기 커밍순..대학생 된 송중기, 이성민家 역공 들어가나('재벌집 막내아들') [Joong-Ki Cumming-Soon... Will Song Joong-Ki, a college student, go into the counterattack of Lee Seong-Min's family ('The youngest son of a conglomerate family')]. OSEN [ko] (in Korean). Archived from the original on November 19, 2022. Retrieved November 19, 2022 – via Naver.
^Seo, Ye-jin (December 30, 2021). [공식] '스위트홈' 김현, '재벌집 막내아들' 출연 확정...송중기와 호흡 [[Official] 'Sweet Home' Kim Hyun, confirmed to appear in 'The Youngest Son of a Conglomerate'...Song Joong-ki breathing]. 10Asia (in Korean). Archived from the original on December 30, 2021. Retrieved December 30, 2021 – via Naver.
^Yoon, Seong-yeol (October 6, 2022). 정희태 '재벌집 막내아들' 합류..송중기X이성민과 호흡 [공식] [Jung Hee-tae joins 'the youngest son of a conglomerate'... Breathing with Song Joong-ki X Lee Seong-min [Official]]. Star News (in Korean). Archived from the original on October 6, 2022. Retrieved October 6, 2022 – via Naver.
^등장인물 소개 [Character introduction] (in Korean). Archived from the original on January 10, 2023. Retrieved November 13, 2022 – via JTBC.
^Hong, Se-young (July 14, 2021). [단독] 박혁권, '재벌집 막내아들' 합류...송중기와 호흡 [[Exclusive] Park Hyuk-kwon joins 'the youngest son of a conglomerate'...Song Joong-ki and breathing]. Sports Donga (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^Kim, Na-yeon (December 11, 2022). 재벌집' 송중기X이성민, 박지훈 희생으로 생존.."배후 찾아내 [Conglomerate House' Song Joong-ki X Lee Seong-min survives at the sacrifice of Park Ji-hoon... "Find the mastermind]. MT Star News (in Korean). Archived from the original on December 12, 2022. Retrieved December 12, 2022 – via Naver.
^Kim, Ye-eun (March 29, 2022). 김정우, '재벌집 막내아들' 출연...송중기 경호원 된다 [공식입장] [Kim Jung-woo to appear in 'The Youngest Son of a Conglomerate'...Becomes Song Joong-ki's bodyguard [Official Position]]. Xports News (in Korean). Archived from the original on March 29, 2022. Retrieved March 29, 2022 – via Naver.
^Yoon, Seong-yeol (October 28, 2021). 강길우 '재벌집 막내아들' 출연..조한철과 호흡 [공식] [Kang Gil-woo's appearance in 'The Youngest Son of a Conglomerate'... Breathing with Jo Han-cheol [Official]]. Star News (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021 – via Naver.
^Jang, In-young (November 25, 2022). 재벌집' 송중기, 이성민·이병준 자존심 건드렸다…승계전쟁 시작 [Conglomerate House' Song Joong-ki, Lee Sung-min and Lee Byung-joon touched the pride... Succession war begins]. Newsis (in Korean). Archived from the original on November 25, 2022. Retrieved November 25, 2022 – via Naver.
^Kim, Han-gil (November 2, 2021). [단독] 이황의, 드라마 '꽃피면 달 생각하고' '재벌집 막내아들' 합류 [[Exclusive] Lee Hwang-ui joins drama 'Thinking of the Moon When It Blooms' and 'The Youngest Son of a Conglomerate']. TV Daily (in Korean). Archived from the original on December 23, 2021. Retrieved December 23, 2021.
^Yoo, Jeong-min (November 15, 2022). 함태인, '재벌집 막내아들' 캐스팅...송중기와 연기 호흡 [Ham Tae-in cast in 'The youngest son of a conglomerate family'...Song Joong-ki and acting breathing]. Ten Asia (in Korean). Archived from the original on November 15, 2022. Retrieved November 15, 2022 – via Naver.
^Kim, Hyun-rok (March 22, 2023). 동은오적만 있나…'더 글로리' 전진오, 빌런 잡는 빌런 떴다 [Is there only Dong-Eun-Ojeok? 'The Glory' Jeon Jin-oh, a villain who catches the villain is on the rise]. SpoTV News (in Korean). Retrieved March 22, 2023 – via Naver.
^Choi, Hye-jin (November 19, 2022). '재벌집 막내아들' 송중기, 총 맞고 추락→과거로 회귀 [★밤TV] ['The youngest son of a conglomerate family' Song Joong-ki, got shot and fell → Return to the past [★Night TV]]. MT Star News (in Korean). Archived from the original on November 19, 2022. Retrieved November 19, 2022 – via Naver.
^Kim, Se-hun (November 19, 2022). 박진영ㆍ차선우(바로), '재벌집 막내아들' 특별 출연…신경민(신 대리)ㆍ송중기 동생으로 시선 강탈 [Park Jin-young and Cha Seon-woo (Baro) make a special appearance in 'The youngest son of a conglomerate family'... Shin Kyung-Min (Shin Deputy) and Song Joong-Ki's younger siblings steal attention]. Biz Entertainment (in Korean). Archived from the original on November 19, 2022. Retrieved November 19, 2022.
^Jang, Ah-reum (November 20, 2022). 재벌집' 송중기, 이성민에 인정받았다…대선예측·서울대 법대 합격까지(종합) [Conglomerate House' Song Joong-ki was recognized by Lee Sung-min... Predicting the presidential election and passing the law school at Seoul National University (comprehensive)]. News1 (in Korean). Archived from the original on November 20, 2022. Retrieved November 20, 2022 – via Naver.
^Choi, Na-young (November 27, 2022). 송중기 아버지 이규회, 알고보니 'IMF 피해 가장' 울분 공감 ('재벌집 막내아들') [Song Joong-ki's father, Lee Kyu-hoe, turns out to empathize with the resentment of 'the head of the IMF victim' ('the youngest son of a conglomerate family')]. OSEN [ko] (in Korean). Archived from the original on January 10, 2023. Retrieved November 27, 2022 – via Naver.
^Kim, Yang-soo (October 14, 2023). [종합] '코리아드라마어워즈' 이성민 대상…오정세x김선아 최우수상 [[Overall] 'Korea Drama Awards' Lee Sung-min Grand Prize...Oh Jung-se x Kim Sun-ah Best Actress]. Joy News 24 (in Korean). Retrieved October 14, 2023.
^Woo, Da-bin (April 19, 2023). '재벌집 막내아들', 한국PD대상 작품상 쾌거 ['The youngest son of a chaebol family' wins Best Picture at the Korea PD Awards] (in Korean). Hankook Ilbo – via Naver.