Episode 1
Episode 1
Feb 20, 2026
Seven years after a lab explosion, Chan returns home for work and unexpectedly meets Haran again.
Episode 2
Episode 2
Feb 21, 2026
Chan sees that Haran is frozen in winter and suggests a three-month trial friendship.
Episode 3
Episode 3
Feb 27, 2026
Haran rejects Chan's three-month friendship offer, but Chan is undeterred.
Episode 4
Episode 4
Feb 28, 2026
As Chan and Haran grow closer, a mysterious sound begins to haunt him, revealing gaps in his memory.
Episode 5
Episode 5
Mar 6, 2026
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.
Episode 6
Episode 6
Mar 13, 2026
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.
Episode 7
Episode 7
Mar 14, 2026
Chan and Ha-ran reunite after his U.S. return. At a SHIM party, their bond grows while Chan starts recording his resurfacing memories.
Episode 8
Episode 8
Mar 20, 2026
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.
Episode 9
Episode 9
Mar 21, 2026
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.
Episode 10
Episode 10
Mar 27, 2026
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.
Episode 11
Episode 11
Mar 28, 2026
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.
Episode 12
Episode 12
Apr 3, 2026
After their trial ends, Haran learns the truth. Chan has vanished, but discovering his feelings, she goes to find him.
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