In a devastating twist, Sunwoo Chan abruptly leaves for the U.S., ghosting Ha Ran without a final goodbye. While Ha Ran attempts to navigate his "joyful" assignments alone, the emotional weight proves too much, leading to her own shocking disappearance.

Is Chan’s mysterious memory loss to blame? The future of their romance—and the Nana Atelier project—hangs in total, icy limbo.

Is Chan’s mysterious memory loss to blame? The future of their romance—and the Nana Atelier project—hangs in total, icy limbo.