Sung-chil, a stubborn 70-year-old with a bad temper, works at Jang-soo Store under its owner, Jang-soo. Though he has little experience with romance, his guarded routine begins to change when he meets Geum-nim, a warm flower shop owner who moves his heart. As people around them cheer on the late-life romance, Geum-nim’s daughter Min-jung struggles to accept her mother’s growing closeness with Sung-chil.