S01E011:09:561. Episode 1Seven years after a lab explosion, Chan returns home for work and unexpectedly meets Haran again.Episodes — Season 1
Season pageS01E011:09:561. Episode 1Seven years after a lab explosion, Chan returns home for work and unexpectedly meets Haran again.
S01E021:07:022. Episode 2Chan sees that Haran is frozen in winter and suggests a three-month trial friendship.
S01E031:07:563. Episode 3Haran rejects Chan's three-month friendship offer, but Chan is undeterred.
S01E041:08:274. Episode 4As Chan and Haran grow closer, a mysterious sound begins to haunt him, revealing gaps in his memory.
S01E051:12:375. Episode 5Chan and Ha-ran find a Gyeongju escape but a resurfacing memory puts Chan in a brewing storm. Unbeknownst to Ha-ran, Chan is drawn into a brewing storm.
S01E061:08:396. Episode 6Chan's sudden exit for the U.S. leaves Ha-ran reeling. As longing sets in, the three sisters clash and Na-na faces an unexpected incident.
S01E071:12:137. Episode 7Chan and Ha-ran reunite after his U.S. return. At a SHIM party, their bond grows while Chan starts recording his resurfacing memories.
S01E081:05:448. Episode 8Ha-ran helps Chan reveal his father's watch secret. After their reconciliation, Ha-ran wins an award but meets a shocking face at the ceremony.
S01E091:08:349. Episode 9Chan's unintentional lie about the fountain pen weighs on his conscience. To stay close to Ha-ran, he must decide if the truth is worth the risk.
S01E101:05:0810. Episode 10Chan's envy of Su-jin and Ha-ran grows. As Ha-ran celebrates Chan’s birthday, she moves past her "winter" while Nana makes a choice in Chuncheon.
S01E111:07:5011. Episode 11Ha-ran, who learns Chan's secret from seven years ago through the "1-Inch of Memory" notebook, falls into confusion upon realizing that even the fountain pen was a gift…
S01E121:11:0812. Episode 12After their trial ends, Haran learns the truth. Chan has vanished, but discovering his feelings, she goes to find him.Where to stream In Your Radiant Season
Subscription
Availability provided by JustWatch via TMDB, details on TMDB. Offers in the United States, subject to change.
In Your Radiant Season synopsis
Chan lives every day like it is summer vacation. Haran is trapped in a lonely winter. When their forgotten past reunites them, Chan is determined to gift her another spring. Through laughter and tears, they face winter together and reach their spring in this heartwarming romance.
In Your Radiant Season cast
Lee Sung-kyungSong Ha-ran · 12 ep.
Chae Jong-hyeopSunwoo Chan · 12 ep.
Han Ji-hyeonSong Ha-yeong · 12 ep.
Kwon HyukYeon Tae-seok · 12 ep.
Oh Ye-juSong Ha-dam · 12 ep.
Kim Tae-youngCha Yu-gyeom · 12 ep.
Lee Mi-sookKim Na-na · 12 ep.
Kang Seok-wooPark Man-jae · 12 ep.
Jung Hae-kyunSunwoo Seok · 12 ep.
Kang Ae-simKim Seon · 12 ep.
Ki Hyun-wooBaek Seung-gyu · 12 ep.
Lee Seung-yeonJeon Pu-reum · 12 ep.
Yun Chae-binKim Sol · 12 ep.
Jin Mi-saCha Yoo-gyum's Mother · 2 ep.
Yoon ParkYoon Photo · 1 ep.
Han Jae-yiEun-chan · 1 ep.In Your Radiant Season trailer
About the series In Your Radiant Season
In Your Radiant Season is a series (mystery and drama) created by Jo Sung-hee, airing on MBC since 2026. It has 1 season and 12 episodes. The series ended on April 3, 2026. Cast members include Lee Sung-kyung, Chae Jong-hyeop and Han Ji-hyeon. It is rated 8.1/10 by 39 TMDB users.
Frequently asked questions about In Your Radiant Season
Where to watch In Your Radiant Season online?
In the United States, In Your Radiant Season is available with a subscription on Disney Plus and Hulu (source: JustWatch via TMDB, offers subject to change). Each episode has its own page with this information.
How many seasons of In Your Radiant Season are there?
In Your Radiant Season has 1 season for a total of 12 episodes.
Has In Your Radiant Season ended?
Yes, the series has ended: the last episode aired on April 3, 2026.
Who stars in In Your Radiant Season?
The lead actors are Lee Sung-kyung (Song Ha-ran), Chae Jong-hyeop (Sunwoo Chan), Han Ji-hyeon (Song Ha-yeong), Kwon Hyuk (Yeon Tae-seok), Oh Ye-ju (Song Ha-dam).
