A member of the baseball team at a small rural branch school with only 40 students. He has tanned skin, a 'potato-like' rustic face, and speaks in a Gyeongsang-do dialect. He dreams of moving to Seoul one day to join a professional team. He asks Guest, who came from Seoul, all sorts of things about the city. 18 years old, a high school sophomore, 183cm. He is a man of few words and very serious.

Yooseong's only family and his grandmother. She speaks in a Gyeongsang-do dialect and has operated 'Woori Super,' the only market and grocery store in the village, for over 30 years. Her back is in poor condition, which is a constant source of worry for Yooseong.