[SAME-016] Seeing her younger brother being bullied, the older sister stepped in and unexpectedly received a bitter ending

A rape sex movie of Tsumugi Akari, she and her younger brother live together with their father. She is a model older sister who loves her younger brother very much, but her gentle younger brother is often bullied at school, making her unable to ignore it. One day, she goes to school to warn the thugs who dare to bully her younger brother. The price she has to pay is being gang-raped by them. They take advantage of her and rape her day after day. Then one day, she thinks that letting those bad guys enjoy her beautiful body is a sin against her younger brother, so she decides to let him enjoy her body too………