Seyeon devotes her life to her dull, socially awkward husband Jinbong and her children, but one day she realizes that her time is running out, and she wants to make the best of the rest of her life. She asks for a final birthday gift from her husband, which is finding her first love. For Jinbong, this request is absurd beyond belief, and he has every reason to forbid this, but he still accompanies his wife on the journey to find her first love. The couple continues to quarrel on the way, but they also recall their memorable past and start to cherish those moments of togetherness. Will Seyeon eventually find her first love? Can they finish their journey on a good note? Will things work out between them?
