In Your Radiant Season

Season 1

2026 · 12 episodes · 13h 39m in all · 9.6/10

Episodes

1. 

   1. Episode 1

   20 Feb 2026 · 69 min · 9.0/10

   Seven years after a lab explosion, Chan returns home for work and unexpectedly meets Haran again.

2. 

   2. Episode 2

   21 Feb 2026 · 67 min · 8.8/10

   Chan sees that Haran is frozen in winter and suggests a three-month trial friendship.

3. 

   3. Episode 3

   27 Feb 2026 · 67 min · 10.0/10

   Haran rejects Chan's three-month friendship offer, but Chan is undeterred.

4. 

   4. Episode 4

   28 Feb 2026 · 68 min · 10.0/10

   As Chan and Haran grow closer, a mysterious sound begins to haunt him, revealing gaps in his memory.

5. 

   5. Episode 5

   6 Mar 2026 · 72 min · 8.0/10

   Chan 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.

6. 

   6. Episode 6

   13 Mar 2026 · 68 min · 10.0/10

   Chan'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.

7. 

   7. Episode 7

   14 Mar 2026 · 72 min · 10.0/10

   Chan and Ha-ran reunite after his U.S. return. At a SHIM party, their bond grows while Chan starts recording his resurfacing memories.

8. 

   8. Episode 8

   20 Mar 2026 · 65 min · 10.0/10

   Ha-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.

9. 

   9. Episode 9

   21 Mar 2026 · 68 min · 10.0/10

   Chan'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.

10. 

    10. Episode 10

    27 Mar 2026 · 65 min · 10.0/10

    Chan'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.

11. 

    11. Episode 11

    28 Mar 2026 · 67 min · 10.0/10

    Ha-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 he had prepared.

12. 

    12. Episode 12

    3 Apr 2026 · 71 min · 9.0/10

    After their trial ends, Haran learns the truth. Chan has vanished, but discovering his feelings, she goes to find him.