On October 2, 2026
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In Your Radiant Season — Season 1
- Feb 20, 2026First aired
- 12 episodesin this season
- 68mavg. runtime
#Episode nameAir dateRuntimeRating
01
69mEpisode 1It had been seven years since the laboratory explosion irrevocably altered the course of Chan's life. Now, returning home for work, he found himself in an unforeseen encounter with Haran.Feb 20, 202610.0Feb 20, 202669m10.002
67mEpisode 2Observing Haran’s withdrawn demeanor, Chan proposed a tentative three-month period to explore the possibility of friendship.Feb 21, 202610.0Feb 21, 202667m10.003
67mEpisode 3Haran declined Chan’s proposal for a three-month friendship, yet Chan remained resolute.Feb 27, 202610.0Feb 27, 202667m10.004
68mEpisode 4With each deepening connection between Chan and Haran, an unsettling sound takes root within him, subtly eroding the edges of his recollections.Feb 28, 202610.0Feb 28, 202668m10.005
72mEpisode 5Chan and Ha-ran managed to slip away to Gyeongju, yet a surfacing memory plunged Chan into rising turmoil. Unaware of this, Ha-ran remained while Chan found himself caught in an escalating conflict.Mar 6, 20268.0Mar 6, 202672m8.006
68mEpisode 6The abruptness of Chan’s departure to America has left Ha-ran deeply unsettled. A wave of yearning follows, stirring friction between the three sisters as Na-na confronts a surprising event.Mar 13, 202610.0Mar 13, 202668m10.007
72mEpisode 7Having returned from America, Chan found himself reunited with Ha-ran. As they mingled at a SHIM gathering, a deeper connection blossomed between them, coinciding with Chan’s efforts to document the fragments of his lost past returning to him.Mar 14, 202610.0Mar 14, 202672m10.008
65mEpisode 8Ha-ran assisted Chan in uncovering the truth about his father’s cherished timepiece. Following their restored understanding, Ha-ran received a prestigious accolade, only to be confronted by a startling figure during the awards presentation.Mar 20, 202610.0Mar 20, 202665m10.009
67mEpisode 9The small deception regarding the fountain pen now troubled Chan’s thoughts. Maintaining a closeness with Ha-ran demanded that he consider whether revealing the truth was a burden worth bearing.Mar 21, 202610.0Mar 21, 202667m10.010
64mEpisode 10A bitter jealousy began to consume Chan as she watched Su-jin and Ha-ran. While Ha-ran marked Chan's birthday with a heartfelt celebration, seemingly emerging from a period of emotional hardship, Nana faced a pivotal decision during a visit to Chuncheon.Mar 27, 202610.0Mar 27, 202664m10.011
67mEpisode 11Discovering Chan’s long-held secret within the pages of the “1-Inch of Memory” notebook, Ha-ran found himself adrift in bewilderment. The realization struck him with particular force: even the simple fountain pen had been a carefully considered offering from Chan, something he'd prepared years ago.Mar 28, 202610.0Mar 28, 202667m10.012
71mEpisode 12Apr 3, 202610.0Apr 3, 202671m10.0
