The purpose of this study is to explore the characteristics of the adaption process of teaching activities of junior faculty members and how the personal (role recognition, educational background, teacher experience, etc.) and structural (e.g. perception on pedagogy among faculty community) factors affect on their adaptation process. To achieve this research goal, semi-structured interviews were conducted on eight junior professors who were appointed to the College of Education. Major findings are as follows. First, the analysis showed that the junior faculty members who participated in the study generally had a low interest in teacher education and had stronger identity as ‘researcher’ in prior to faculty appointment. Because of lack of pedagogical training and role recognition, the junior faculty members embarked on a journey as ‘teacher’ without having clear educational philosophy or goals which resulted in various difficulties in their teaching activities. Major difficulties include excessive investment in class preparation that derived imbalance between research and teaching, limited teaching methods and role conflicts. On the other hand, the junior faculty members experienced critical self-reflection on their teaching activities as well as their role as teacher based on students’ class evaluation. Various adjustments and changes were adopted to improve their teaching experience including change in instruction style and perception towards learners. However, junior faculty members’ efforts to actively improve their teaching tended to be “compromised” and stop at certain point due to conflicting priority between teaching and research activities. Based on these results, the study presented various policy implications for improving junior faculty members’ adaptation experience as a ‘teacher’.