My Youth () is a 2025 South Korean television series starring Song Joong-ki, Chun Woo-hee, Lee Joo-myung and Seo Ji-hoon. It aired on JTBC from September 5 to October 17, 2025, every Friday at 20:50 (KST). The series also streams on Viki and Viu in selected regions.
Synopsis The drama focuses on Sunwoo Hae, who, after a difficult childhood in the entertainment industry, finds peace as a novelist and florist. He reconnects with his first love, Sung Je-yeon, who is now a driven team leader at a company. Their reunion forces them to confront their past and their present selves, as they navigate their own personal and professional struggles.
Cast and characters Main Song Joong-ki as Sunwoo Hae Nam Da-reum as teen Sunwoo Hae Choi Eun-jun as child Sunwoo Hae A former child actor turned novelist and florist, seeking solace in art and love. Chun Woo-hee as Sung Je-yeon Jeon So-young as teen Je-yeon Kim Ji-yul as child Je-yeon An actor manager and management team leader who was once a model student. Lee Ju-myoung as Mo Tae-rin as teen Tae-rin A model child star turned leading actress. Seo Ji-hoon as Kim Seok-ju Cho Han-gyeol as teen Seok-ju A tax accountant and Tae-rin's first love.
Supporting Jin Kyung as Kim Pil-doo CEO of the entertainment agency and Seok-ju's mother. Jo Han-chul as Sunwoo Chan A poet and publisher, and Hae's father. Choi Jeong-woon as Eun Nu-ri Lee Chae-Yoo as young Nu-ri A high school student and Hae's younger half-sister. as Lee Geon-noh A longtime neighbor who grew up like family with Hae. Lee Bong-ryun as Bang Han-na Director at the entertainment agency who yearns to break away from Pil-doo. Kwon Seung-woo as Choi Ki-beum Lee Jin-hee as Yang Ja-kyung Lee Ji-hye as Jin So-ra A principled broadcasting PD (producer-director). Park Jae-hyun as Choi Sa-rang A high school student and Ki-beum's younger brother. Kim Soo-jin as Je-yeon's mother Bae Yoon-gyu as Min-kyu
Production My Youth is directed by Lee Sang-yeop, whose works include Familiar Wife (2018), A Piece of Your Mind (2020) and Yumi's Cells (2021–22). The series is written by Park Si-hyeon, who wrote Run On (2020). It is co-produced by SLL and High-Zium Studio.
Viewership
+ Average TV viewership ratings Original broadcast date Average audience share (Nielsen Korea)Nielsen Korea ratings:
Nationwide Seoul 1 September 5, 2025 2.959% 2 2.822% 3 September 12, 2025 2.155% 2.033% 4 2.430% 2.277% 5 September 19, 2025 1.930% 1.968% 6 2.249% 2.268% 7 September 26, 2025 8 2.090% 1.884% 9 October 3, 2025 1.710% 1.472% 10 1.972% 2.011% 11 October 10, 2025 1.852% 1.738% 12 October 17, 2025 2.107% 1.986% Average In the table above, the represent the lowest ratings and the 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).
References
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