The decline in foreign language learners in tertiary education is a concern in many countries. While factors influencing students' persistence in second language learning have been explored, there has been limited discussion on the potential of language programmes that develop students' self-formation alongside language learning. This study aimed to understand student experiences in a tertiary Japanese language programme that incorporated language learning with self-formation, and how these experiences influenced the students' post-graduate life choices. The study was conducted qualitatively, primarily through semi-structured interviews with three students from unconventional educational backgrounds. Data were thematically analysed using transformative learning theory as a theoretical lens. The results revealed key elements of transformative learning, such as disorienting dilemmas, reflection, critical dialogue, and taking actions for change. The process of change was recursive and evolved over time, leading to students' increased confidence and proactivity. The impact was evident in their post-graduate career choices, which were based on their new perspectives. A supportive environment, exposure to different cultures, and a curriculum combining real-life experiences with socio-cultural discussions effectively facilitated student growth. While this study was conducted in the context of foreign language education, its implications may be applicable to other disciplines.