This qualitative case study was done to gain better understanding of the factors that contributed to the successful social participation and transition to adulthood of an American adolescent, named Addie, diagnosed with epilepsy. Addie’s life chart was used to describe her experience of living with Lennox-Gastaut Syndrome (epilepsy). Major focus of the study was an exploration of her rich and positive experience of living in Korea, away from home, for 10 weeks. Analysis of Addie’s lived experience in Korea revealed two factors that facilitated her independent living there, in contrast to her previous home life; 1) Social environment and 2) Physical environment and their subcategories. Following her return home from this experience, she was able to generalize the skills gained into her own environment in Los Angeles. The findings of this study indicate that the change in these two factors increased Addie’s self-esteem, confidence, motivation and opportunities for participation in meaningful social interaction, thereby increasing her chance of successfully transitioning into adulthood.