Dedicated researcher Kim Mi-kyung (Lee Sun-bin) strives to cultivate a new potato variety at Sunnyeo Foods. Her ambitions are disrupted by a corporate merger led by the principled So Baek-ho (Kang Tae-oh), forcing her team to integrate into Wonhan Retail. Amidst workplace challenges and personal entanglements, including encounters with ex-boyfriend Park Gi-se (Lee Hak-joo), Mi-kyung's passion for potatoes and resilience are tested, setting the stage for a unique romantic comedy.