The story is set in a potato research center in a mountain valley that depicts a refreshing romance between slightly screwed adults. Kim Mi Gyeong, a potato researcher with 12 years of experience at the Potato Research Institute, at first glance, looks like an unemployed person recognized by the neighborhood, but when she opens her mouth, she starts spouting biological terms. Kim Mi Gyeong is a person crazy about potatoes who is working on a secret project at the Potato Research Institute to create a good potato called "Mi Gyeong". Meanwhile, she at first bickers with So Baek Ho, who has been appointed as the new director of the Potato Research Institute, but gradually feels attracted to him and ends up having an in-office romance with him, which she vows never to do again. So Baek Ho is a person with a deadly smile, a soft voice, and divine visuals, as though he were on the cover of a romance novel. However, unlike his extravagant appearance, he is an outsider who does well on his own, with no personal life to speak of, no friends, and a bit of vulgarity.