The purpose of this study was to investigate self expression with parents, friends, and teachers targeting adolescents using consensual qualitative analysis method (CQR: Consensual Qualitative Research. Hill, 2011; Hill, Knox, Thompson, Williams, Hess, & Ladany, 2005). The subjects of study were 10 high school students(5 boys, 5 girls) nominated by school teachers and peers. As a result, high school students’ self expression was finally derived 8 domains and 21 categories. The results of the study are summarized as follows. First, self expression with parents was derived four categories from the two domains; expression within the range which did not cause a worry to parents and avoidance or silence. Second, self expression with friends was derived 13 categories from the four domains; scanning group atmosphere, difficulty in true expression, recognition of the importance on expression attitudes, and cyber expression culture. Third, self expression with teachers was derived four categories from the two domains; difficulties in the evaluation of teachers and difficulties associated with courtesy. This study extended the overall understanding of self expression by addressing how adolescents express and why they express in that way, investigating self expression with parents, friends, and teachers who adolescents usually build a relationship. Also, it is important that this study provided a basic information focused on self expression education and counseling for adolescents.