February 20, 2026 · 69 min
Seven years after a lab explosion, Chan returns home for work and unexpectedly meets Haran again.
February 21, 2026 · 67 min
Chan sees that Haran is frozen in winter and suggests a three-month trial friendship.
February 27, 2026 · 67 min
Haran rejects Chan's three-month friendship offer, but Chan is undeterred.
February 28, 2026 · 68 min
As Chan and Haran grow closer, a mysterious sound begins to haunt him, revealing gaps in his memory.
March 6, 2026 · 72 min
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.
March 13, 2026 · 68 min
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.
March 14, 2026 · 72 min
Chan and Ha-ran reunite after his U.S. return. At a SHIM party, their bond grows while Chan starts recording his resurfacing memories.
March 20, 2026 · 65 min
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.
March 21, 2026 · 68 min
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.
March 27, 2026 · 65 min
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.
March 28, 2026 · 67 min
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.
April 3, 2026 · 71 min
