Middle-aged South Korean women are at greater risk of developing hwa-byung (South Korean anger syndrome) as compared to men and women of other age groups. In this study, we developed and evaluated the effectiveness of a group counseling program informed by Adlerian individual psychology. Outcome measures included hwa-byung symptoms, depression, and anxiety. We used a cohort-controlled design that compared an intervention condition ( n = 22) and a wait-list control group ( n = 16), with a 4-week follow-up. Group comparisons showed statistically significant treatment effects for all three outcome measures, which were maintained at follow-up. Mediational analyses revealed that changes in hwa-byung symptoms and depression were mediated by increased social interest. The findings support the effectiveness of a group Adlerian program for middle-aged South Korean women in alleviating hwa-byung symptoms, depression, and anxiety.