S01E011:09:561. Episode 1Seven years after a lab explosion, Chan returns home for work and unexpectedly meets Haran again.
In Your Radiant Season Season 1 – Watch online
12 episodes · since February 20, 2026
All episodes of season 1 of In Your Radiant Season: summaries, air dates, ratings and legal platforms (dubbed or subtitled depending on the platform).
S01E011:09:561. 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 Season 1
Subscription
Availability provided by JustWatch via TMDB, details on TMDB. Offers in the United States, subject to change.
About season 1
Season 1 of In Your Radiant Season has 12 episodes, aired from February 20, 2026 to April 3, 2026 on MBC. Episodes run 68 minutes on average. The highest rated episode is “Episode 3” (S01E03, 10.0/10).
Frequently asked questions about In Your Radiant Season Season 1
How many episodes are in In Your Radiant Season Season 1?
In Your Radiant Season Season 1 has 12 episodes.
When did In Your Radiant Season Season 1 air?
The first episode aired on February 20, 2026 and the last one on April 3, 2026.
Where to watch In Your Radiant Season Season 1 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). Availability of each season depends on the platform.