Nam, Kyungwoo is an eccentric geography teacher at Incheon Haesong High School, who wonders what stories will entertain and inspire his students rather than worry about improving their academics. He believes that it is more important to teach students after forming a bond through life stories instead of starting with a textbook. In his mid-30s, the author, although somewhat old, fell in love with traveling and photography. When he became tired of ten years of teaching, his one and a half years of study abroad to Japan changed his later life.