[ENGLISH-SUBTITLE] PPPE-183 After my mother died, I continued to suck my sister's breasts for 10 years. You helped me grow up to be this strong person. Karen Yuzuriha

``It'' started with my mom's sudden death. For the next 10 years, the younger brother, who was unable to wean, grew up using his older sister's breasts as a pacifier. My younger brother's tongue movement when sucking has improved