Actress Kim Sung-eun appeared as a guest on the May 13th episode of MBC’s 'Radio Star' for the 'Teachers' Day' special. During the broadcast, she opened up about her intense commitment to her three children's education, revealing that she spends approximately 3.25 million won per month on private tutoring expenses. Addressing rumors regarding her husband, Jung Jo-gook, she clarified that she pays for these costs entirely with her own earnings rather than her husband's income, jokingly noting that she often earns more. Kim also shared her insights as an 'expert parent,' including the fact that her eldest son attends four different mathematics academies in the Daechi-dong area. | Actress Kim Sung-eun appeared as a guest on the May 13th episode of MBC’s 'Radio Star' for the 'Teachers' Day' special. During the broadcast, she opened up about her intense commitment to her three children's education, revealing that she spends approximately 3.25 million won per month on private tutoring expenses. Addressing rumors regarding her husband, Jung Jo-gook, she clarified that she pays for these costs entirely with her own earnings rather than her husband's income, jokingly noting that she often earns more. Kim also shared her insights as an 'expert parent,' including the fact that her eldest son attends four different mathematics academies in the Daechi-dong area.