Teachers are an essential element in determining the quality of education. This study carefully reports on the roles of Front line teachers (FLT) in their careers. One front line program teacher was used as a single subject for questioning and authentic evidence about their work during their work. The teacher teaches at an elementary school on the island of Sumba, East Nusa Tenggara, Indonesia. This research method uses a narrative inquiry method. Semi-structured interviews and documentation studies were used as a means of collecting data. Triangulation of methods and sources is used to increase the validity of the information obtained. The results show that FLT has a significant role in improving the quality of education in schools. In addition, FLT can be the motor of changes in teacher attitudes and mentality in teaching. Professional work spirit and integrity can drive horizontal and vertical changes in the target school. In addition to improving the quality of education, which is directly related to the quality of graduates, school performance from the administrative aspect has also improved.