On a cold winter's day, fate brings together two former lovers, Gyeong-yu and Yoo-jung, in an unexpected encounter that sets them on a path of reconnection amidst life's challenges. With his apartment temporarily vacated due to her parents' visit, Gyeong-yu finds himself at a crossroads, rediscovering the love they once shared while working as a substitute driver. As they navigate their past and present, will they find a way to start anew?