Group counseling had its effectiveness on improvement for individual’s psychological well-being. However, little was known about what happened within the group process. Therefore, the purpose of this study was to discover the process of group members’ emotion developed and transitioned throughout the group counseling. Researcher conducted 12 sessions of unstructured group with 8 members. Members’ ages were in between 18 to 30. A sequential analysis with the coding based on Fundamental repetitive and maladaptive emotion structure (FRAMES) helped to identify the change of member’s affective behaviour in the group process. As results shown several transition of affective behaviour in early group stage and late group stage, group therapeutic factors were discussed based on the findings.