In Your Radiant Season

In Your Radiant Season
Promotional poster
Hangul
찬란한 너의 계절에
RRChallanhan neoui gyejeore
MRCh'allanhan nŏŭi kyejŏre
GenreRomance drama[1]
Written byJo Sung-hee
Directed by
  • Jeong Sang-hee
  • Kim Young-jae
Starring
Music byMoon Sung-nam
Country of originSouth Korea
Original languageKorean
No. of episodes1
Production
Executive producers
  • Park Sang-hyun[2]
  • Kim Hee-yeol[2]
  • Hong Soo-hwan (CP)[2]
Producers
  • Lee Wol-yeon[2]
  • Moon Joo-hee[2]
  • Ahn Jae-hong[2]
Running time70 minutes
Production companyPan Entertainment
Original release
NetworkMBC TV
ReleaseFebruary 20, 2026 (2026-02-20) –
present

In Your Radiant Season (Korean: 찬란한 너의 계절에) is an ongoing South Korean television series written by Jo Sung-hee, directed by Jeong Sang-hee and Kim Young-jae, and starring Lee Sung-kyung and Chae Jong-hyeop. The series tells the story of Seonu Chan, who lives life to the fullest, and Song Ha-ran, who is stuck in her emotions, and how their connection brings warmth and change to both their lives when they meet. It premiered on MBC TV on February 20, 2026, and airs every Friday and Saturday at 21:50 (KST). It is also available for streaming on Disney+.

Synopsis

In Your Radiant Season follows Seonu Chan, a cheerful animator who loses his hearing and memory after a mysterious accident, and his journey with Song Ha-ran, a talented designer who becomes his savior, as they navigate their complicated pasts and relationships.

Cast

Main

The eldest sister of the three sisters. She's the head designer at Nana Atelier, Korea's top fashion house, hiding behind a perfect image. She's trapped in grief, still hurting from past losses. Then she meets Seonu Chan, and her carefully controlled world starts to fall apart.
A character designer at a top animation studio. Behind his sunny personality, he harbors deep scars from a mysterious accident in the past that caused him to lose his hearing and memory. But when he meets Ha-ran, he's forced to face a shocking secret.

Supporting

Haran's family

Ha-ran's grandmother.
Ha-ran's middle sister.
Ha-ran's youngest sister.

People around the Song family

A barista.
  • Kim Tae-young as Cha Yu-gyeom[4]
A high school baseball player and Ha-dam's boyfriend.

Nana Atelier

COO of Nana Atelier. Nana's loyal right-hand man.
  • Jang Yong-won as Je Rae-mi[7][5]
A perfectionist designer.
A junior designer in the Design Team 1 at Nana Atelier.
  • Lee Seung-yeon as Jeon Pu-reum[6]
Nana Atelier Design Team 1 Assistant Designer.
  • Yoon Chae-bin as Kim Sol[6]
Nana Atelier Design Team 1 Intern.

People around Chan

Production

Development

The series is planned by Namgoong Sung-woo, co-directed by Jeong Sang-hee and Kim Young-jae, written by Jo Sung-hee, and produced by Pan Entertainment.[1]

On November 13, 2025, Pan Entertainment announced that it had signed a production and supply agreement with MBC worth ₩15.2 billion.[9]

Casting

In 2023, Han Hyo-joo was initially cast as the female lead, but was later recast with Lee Sung-kyung considering it and Seo In-guk considering the male lead.[10][11]

In May 2025, Chae Jong-hyeop reportedly received an offer to play the role of Sunwoo Chan, which was initially offered to Seo.[12] In September, the casting of Lee and Chae as the leads was officially confirmed.[1] The next month, Lee Mi-sook, Kang Seok-woo, Han Ji-hyun, Oh Ye-ju, and Ki Hyun-woo joined the cast.[3][13]

Filming

Principal photography began in October 2025.[7]

Release

In Your Radiant Season was reportedly scheduled to premiere on MBC TV in the first half of 2026.[1] On January 13, 2026, a script reading was revealed, and the series officially confirmed its premiere on February 20, 2026, airing on a Friday–Saturday timeslot at 21:50 (KST).[5] It will also be available for streaming on Disney+.[14]

Viewership

In Your Radiant Season : South Korea viewers per episode (thousands)
SeasonEpisode numberAverage
123456789101112
1835TBDTBDTBDTBDTBDTBDTBDTBDTBDTBDTBDTBD
Source: Audience measurement performed nationwide by Nielsen Korea.[15]
Average TV viewership ratings
Ep. Original broadcast date Average audience share
(Nielsen Korea)[15]
Nationwide Seoul
1 February 20, 2026 4.4% (11th) 4.4% (10th)
2 February 21, 2026
3 February 27, 2026
4 February 28, 2026
5 March 6, 2026
6 March 7, 2026
7 March 13, 2026
8 March 14, 2026
9 March 20, 2026
10 March 21, 2026
11 March 27, 2026
12 March 28, 2026
Average — —
  • In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.

References

  1. ^ a b c d e f Son, Bong-seok (September 25, 2025). '찬란한 너의 계절에' 이성경X채종협 출연 확정[공식] [Official: Lee Sung-kyung and Chae Jong-hyeop confirmed for 'In Your Brilliant Season']. Sports Kyunghyang (in Korean). Retrieved November 21, 2025.
  2. ^ a b c d e f 프로그램 소개 [Program Introduction]. iMBC (in Korean). Retrieved February 20, 2026.
  3. ^ a b c d e Kim, Ji-hye (October 1, 2025). 이성경·채종협 로맨스 '찬란한 너의 계절에', 이미숙→강석우 합류 [Lee Sung-kyung and Chae Jong-hyeop's romance 'In Your Brilliant Season', Lee Mi-sook → Oh Ye-ju joins]. Herald Pop (in Korean). Retrieved November 21, 2025.
  4. ^ Son Bong-seok (January 13, 2026). "'뉴네임' 김태영, '찬란한 너의 계절에'로 작품 데뷔!" [[New Name] Kim Tae-young makes his acting debut with "In Your Radiant Season"]. Sports Kyunghyang (in Korean). Retrieved January 14, 2026.
  5. ^ a b c Yoo, Jeong-min (January 13, 2026). MBC '찬란한 너의 계절에' 이성경·채종협, 대본리딩부터 번진 '찬란 케미' [MBC's In Your Radiant Season stars Lee Sung-kyung and Chae Jong-hyeop, their splendid chemistry sparking from the script reading]. iMBC (in Korean). Retrieved January 13, 2026.
  6. ^ a b c "찬란한 너의 계절에 등장인물" [Characters in Your Radiant Season]. MBC. Retrieved January 21, 2026.
  7. ^ a b Kim, Ji-hye (September 9, 2025). [단독] '용원게이' 장용원, '예필' 하차 후... '찬란한 너의 계절에'로 본업 행보 [Exclusive: Jang Yong-won, aka Yongwon Gay, returns to his main career with 'In Your Brilliant Season' after leaving Yepil]. Ilgan Sports (in Korean). Retrieved November 21, 2025.
  8. ^ So-jin Park (January 20, 2026). "기현우, '찬란한 너의 계절에' 합류…워너비 비주얼 디자이너 변신" [Ki Hyun-woo joins "In Your Radiant Season"… transforms into a wannabe visual designer]. MBN Star (in Korean). Retrieved January 20, 2026.
  9. ^ Kwon, Oh-seok (November 13, 2025). 팬엔터테인먼트, MBC와 드라마 공급 계약 [Pan Entertainment signs drama supply contract with MBC]. Edaily (in Korean). Retrieved November 21, 2025.
  10. ^ Kim, Ji-won (July 18, 2023). [단독] 한효주, 2년만에 복귀 차기작 나왔다...'찬란한 너의 계절에' 주인공 캐스팅 [Exclusive: Han Hyo-joo returns after two years with her next project... Cast as the female lead in 'In Your Brilliant Season']. Ten Asia (in Korean). Retrieved November 21, 2025.
  11. ^ Ahn, Eun-jae (September 1, 2023). 서인국·이성경, 로맨스로 만날까..."'찬란한 너의 계절에' 출연 검토" [Seo In-guk and Lee Sung-kyung to reunite in new romance drama 'In Your Brilliant Season']. News 1 (in Korean). Retrieved November 21, 2025.
  12. ^ Park, Seo-yeon (May 30, 2025). 채종협, 이성경과 로맨스 호흡 맞출까..."'찬란한 너의 계절에' 제안 받아" [공식입장] [Official Statement: Will Chae Jong-hyeop and Lee Sung-kyung star in a romantic drama? "I've accepted an offer for 'In Your Brilliant Season']. My Daily (in Korean). Retrieved November 21, 2025.
  13. ^ Jang, Jin-ri (October 25, 2025). [단독]홍석천이 인정한 '보석' 기현우, 지상파 안방 데뷔...'찬란한 너의 계절에' 합류 [Ki Hyun-woo, a gem recognized by Hong Seok-cheon, makes his terrestrial home screen debut and joins 'In Your Brilliant Season']. SPOTV (in Korean). Retrieved November 21, 2025.
  14. ^ Bernardo, Jaehwa (January 21, 2026). "Lee Sung-kyung, Chae Jong-hyeop lead Disney+ K-drama In Your Radiant Season". ABS-CBN Digital Media. Retrieved January 21, 2026.
  15. ^ a b Nielsen ratings:
    • "Ep. 1". Nielsen Korea. February 20, 2026. Retrieved February 21, 2026.
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