In Your Radient Season, after multiple delays and casting changes, is finally coming to TV screens. Starring Lee Sung Kyung and Chae Jong Hyeop, it tells a moving story of two people whose lives are forever changed by a fateful encounter.
On January 20, MBC and Disney released the first teaser trailer for In Your Radient Season ahead of its premiere next month. The 2026 Kdrama slate looks promising as Netflix also released a massive K-content lineup today.
In Your Radient Season Release Date
In Your Radient Season, starring Chae Jong Hyeop and Lee Sung Kyung, is scheduled to premiere on February 20, 2026. The 12-episode drama will air on MBC every Friday and Saturday at 9:50 PM KST and conclude on March 28.
International streaming for this melodrama will be available on Disney+. Produced by Pan Entertainment, the series received a major ₩15.2 billion investment from MBC.
Plot Overview
The story centers on Sunwoo Chan (Chae Jong Hyeop), a cheerful character designer who loses both his hearing and memory after a mysterious accident. Seven years later, he crosses paths with Song Ha Ran (Lee Sung Kyung), a talented head designer at Korea’s top fashion house, Nana Atelier. Song has shut herself off from the world due to grief and fear of losing someone precious.
Their meeting reopens old wounds and forces them to confront hidden truths. Chan struggles to recover memories from the accident, and Ha Ran must face the grief she has kept buried.
Cast and Characters
- Lee Sung Kyung plays Song Ha Ran, the talented but emotionally closed-off head designer of Nana Atelier. This is Lee’s quick acting comeback after appearing in JTBC and Disney+’s The Nice Guy, with Lee Dong Wook. Her popular Kdramas include Dr. Romantic (S2 &S3), Shooting Stars, and Call It Love.
- Chae Jong Hyeop stars as Sunwoo Chan, the bright and sunny character designer at a top animation studio who suffered memory loss after an unfortunate accident. Chae returns to TV after nearly two years following his appearance in Serendipity’s Embrace opposite Kim So Hyun. He previously worked with Lee Sung Kyung when he made a guest appearance in Shooting Stars.
The supporting cast includes
- Lee Mi Sook as Kim Na Na, Ha Ran’s grandmother
- Han Ji Hyun as Song Ha Young, Ha Ran’s middle sister
- Oh Ye Ju as Song Ha Dam, Ha Ran’s youngest sister
- Kang Seok Woo as Park Man Jae, a barista
- Ki Hyun Woo as Baek Seung Gyu, a junior designer at Nana Atelier
- Jang Yong Won as Je Rae Mi, a perfectionist designer
- Kim Tae Young as Cha Yu Gyeom, a high school baseball player
- Yoon Chae Bin as Kim Sol, an intern at Nana Atelier
In Your Radiant Season Trailer
The first teaser was released during the 2025 MBC Drama Awards. It opens with Chan struggling to piece together his fragmented memories from the accident, saying, “Didn’t something happen to me?”
Ha Ran appears during these fragmented memories, and her heartfelt words, “Chan, I love you.” Chan narrates, “Seven years ago, in the midst of my coldest winter, she came into my life like a warm spring breeze.
Production Team
The film is co-directed by Jung Sang Hee and Kim Young Jae, with an original script written by Jo Sung Hee (Still 17, She Was Pretty). Filming began in October last year and is still underway. Initially, the female lead role was offered to Han Hyo Joo in 2023 before Lee Sung Kyung was confirmed. The role of Sunwoo Chan was also first offered to Seo In Guk, with Chae Jong Hyeop ultimately cast in the part.