This study focuses on the school experience of sexual minorities of female in assigned sex to reveal how schools are related to their lives as a social structure. To this end, researchers selected female sexual minority students by assigned sex as research participants and tried to resonate with them through narrative exploration methods and unravel their lives through stories. The stories woven together by researchers and research participants in the process of narrative inquiry are as follows. Female sexual minority students by designated gender went through a process of identifying their sexual orientation and gender identity through SNS such as Twitter, and the role of the school was insufficient in the process. In addition, the study participants experienced that their sexual orientation or gender identity was denied by people around them. Based on the stories organized with the study participants, the researchers recounted their experiences under the themes of "absence by denial of sexual minorities," "space and time of implicit discrimination and hate reproduction," and "hiding and being alli as a survival strategy." Through this, it was found that sexual minority students, who are research participants, were "being but should not being" in schools. The results of these studies suggest that legal and institutional devices, the concept of sexual minorities, and human rights that allow sexual minorities to live a safe and equal school life need to be included in the school curriculum. In addition, as a practitioner of the curriculum, education for teachers' sensitivity to sexual minorities' human rights will be paramount.