Kang-hee returns to her hometown for a work project, confronting unresolved feelings for her first love, Yeon-soo, now with Nan-woo. As she navigates emotional turmoil and family tensions, flashbacks reveal their past romance. The episode culminates in a poignant confrontation, highlighting themes of love, loss, and personal growth. Main characters include Kang-hee, Yeon-soo, and Nan-woo.