Development of self on adolescence is the process of change from relation-dependent self to individualized self. The purpose of this study is to investigate aspects of individualized self in late adolescent women in the relationship with same-sex informal group, which is close and interdependent friendship characteristic of early and middle adolescent women. Subjects were 125 junior college women. As the first method, image drawing was used and subjects drew image of the relationship between oneself and group. These drawings were classified depending on following: 1. Whether or not the self is identified. 2. How the area representing self is constructed in the relationship with others. As a result, two frameworks (1. Whether the distinction between oneself and others is "active or passive". 2. Whether the level of individuality is "individual or relative") were extracted as the point of view grasping aspects of their individuality. Furthermore, as the second approach, interview was administered to 14 subjects among 125, and 5 examples that were typical of aforesaid two frameworks were investigated particularly.