In Your Radiant Season

The Korean drama "In Your Radiant Season" (also known as "In Your Brilliant Season" or native title 찬란한 너의 계절에) emerged as one of the highly anticipated romance series of early 2026. Premiering amid a wave of fresh K-content, this MBC production blends elements of mystery, emotional depth, and heartfelt connection, drawing viewers into a story of healing and unexpected warmth.

Overview

"In Your Radiant Season" is a 12-episode romance drama with mystery and dramatic undertones. It aired on MBC every Friday and Saturday at 21:50, starting February 20, 2026, and concluding March 28, 2026. Each episode runs approximately 1 hour and 30 minutes. Directed by Jung Sang-Hee and Kim Young-Jae, and written by Jo Sung-Hee, the series explores themes of loss, hidden pain, and the transformative power of human connection across personal struggles and generational ties.

Plot Synopsis

The story centers on Sunwoo Chan, a bright and lively animator working at a world-famous animation studio. Despite his cheerful personality and zest for living each day with excitement – like an endless summer vacation – he carries deep wounds from a mysterious accident that left him with hearing loss and memory impairment. Enter Song Ha-ran, a renowned head designer at a prestigious high-end fashion house, Nana Atelier. She maintains a flawless, cold exterior, having locked herself in an emotional "winter" due to past losses and a reluctance to form deep bonds. Their fateful encounter disrupts her guarded life, cracking her carefully maintained balance, while she becomes a source of salvation for him. The narrative weaves romance with elements of mystery as they confront unimaginable secrets from their pasts, alongside love stories spanning generations within their families.

Cast & Characters

Main Cast

• Lee Sung-kyung as Song Ha-ran: A talented, emotionally guarded chief designer with exceptional creativity and work ethic. She excels professionally but avoids special connections, hiding inner pain behind her perfect image.
• Chae Jong-hyeop as Sunwoo Chan: An optimistic animator who strives to embrace life fully despite his disabilities and hidden secrets. He brings warmth and "spring" to those around him.

Supporting Cast

• Lee Mi-sook as Kim Na-na (also referred to as Kim Na Bong): Song Ha-ran's maternal grandmother, involved in navigating love across generations.
• Kang Suk-woo as Park Man-jae: A café owner tied to the older generation's storyline.
• Han Ji-hyeon as Song Ha-young: Song Ha-ran's younger sister, who protects her older sister from family pressures.
• Oh Ye-ju as Song Ha-dam: Another sister in the family dynamic, portrayed in high school sweetheart contexts in related narratives.

Reception

"In Your Radiant Season" generated strong pre-release buzz thanks to its lead pairing and emotional premise. Viewers praised the chemistry between the leads, the atmospheric storytelling blending romance and melodrama, and the sensitive handling of themes like disability and grief. It appealed to fans of heartfelt, character-driven stories, often highlighted in lists of must-watch February K-dramas for its mix of fantasy-tinged romance and generational love. The series built anticipation through teasers and posters showcasing contrasting emotions and seasonal metaphors.

Fun Facts & Highlights

Lee Sung-kyung and Chae Jong-hyeop Reunion

The drama marks a reunion for Lee Sung-kyung and Chae Jong-hyeop in a romantic lead pairing, with their on-set chemistry described as natural and comfortable.

Symbolic Seasonal Contrasts in Promotion

Pre-release materials, including posters and teasers, emphasized seasonal contrasts – "spring" brought by Chae Jong-hyeop's character to Lee Sung-kyung's "winter" – symbolizing emotional thawing.

Chae Jong-hyeop's Vibrant Character

Chae Jong-hyeop portrayed an animator full of vitality, drawing from his character's desire to live excitedly every day.

Lee Sung-kyung's Guarded Yet Warm Role

Lee Sung-kyung highlighted her role as an emotionally guarded designer, sharing insights into the guarded yet warm dynamics.

Intergenerational Family Love Story

Family elements include intergenerational love, with Lee Mi-sook reuniting with a first love through connections to Lee Sung-kyung's character.

Intriguing Teaser Moments and Past Secrets

Teasers featured poignant moments, like reunions where one character doesn't remember the other, building intrigue around past secrets.

Final Thoughts

"In Your Radiant Season" stands out as a poignant exploration of how unexpected encounters can melt frozen hearts and uncover buried truths. With strong performances from Lee Sung-kyung and Chae Jong-hyeop, combined with a touching narrative that balances personal healing and romantic sparks, it delivers an uplifting yet introspective experience. For those who enjoy K-dramas with emotional depth, mystery, and hopeful romance, this series offers a radiant reminder that warmth can arrive even in the coldest seasons.

Where to Watch

Broadcast Schedule

Airing on MBC in South Korea.

Streaming Access

• South Korea: Wavve, Disney+.
• U.S.: Hulu.
• Globally: Disney+.

Main Role

Lee Sung-Kyung Chae Jong-Hyeop

Support Role

Yun Chae-Bin Jung Hae-Kyun Lee Mi-Sook Han Ji-Hyeon Oh Ye-Ju Kang Suk-Woo Kwon Hyuk Ki Hyun-Woo Lee Seung-Yeon Kim Tae-Yeong

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