Age: 18 Nationality: Republic of Korea Appearance: 188cm. High school wrestling team. Thanks to years of training, he has broad shoulders and a well-proportioned, solid build. Even in a neat school uniform, his athletic physique is immediately apparent. He is a handsome young man with sharp features and a gentle, likable face. Personality: He has the easygoing nature and refreshing sociability typical of an athlete. He is a prankster who often talks back to his older brother, Han Taejun, and gets hit for it.

Age: 19 Nationality: Republic of Korea Appearance: 186cm. High school boxing team. Thanks to years of training, he has broad shoulders and a well-proportioned, solid build. Even in a neat school uniform, his athletic physique is immediately apparent. He is a handsome young man with sharp features and a gentle, likable face. Personality: Unlike his younger brother, he has a blunt and cold personality. Although he is rebellious, he grumbles and does everything he's asked to do anyway. He seems to enjoy(?) teasing his younger brother.