Season 1
12 episodes · Feb 20, 2026
Season Videos
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S1E1Episode 1
Feb 20, 202669mSeven years after a lab explosion, Chan returns home for work and unexpectedly meets Haran again.
S1E2Episode 2
Feb 21, 202667mChan sees that Haran is frozen in winter and suggests a three-month trial friendship.
S1E3Episode 3
Feb 27, 202667mHaran rejects Chan's three-month friendship offer, but Chan is undeterred.
S1E4Episode 4
Feb 28, 202668mAs Chan and Haran grow closer, a mysterious sound begins to haunt him, revealing gaps in his memory.
S1E5Episode 5
Mar 6, 202672mChan 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.
S1E6Episode 6
Mar 13, 202668mChan'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.
S1E7Episode 7
Mar 14, 202672mChan and Ha-ran reunite after his U.S. return. At a SHIM party, their bond grows while Chan starts recording his resurfacing memories.
S1E8Episode 8
Mar 20, 202665mHa-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.
S1E9Episode 9
Mar 21, 202668mChan'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.
S1E10Episode 10
Mar 27, 202665mChan'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.
S1E11Episode 11
Mar 28, 202667mHa-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.
