IPX-517 Every morning, the older sister I admire on the train is being molested, but I can't do anything but have a boner, Tsubasa Amami.

A wonderful older sister who works at a library is kind, elegant, and has a sense of justice. Out of a sense of justice, she earns DQN's grudge... Please...help me... That's impossible for me... My older sister is being raped right in front of me! I want to help! I want to help you! I can't stop getting an erection when I see her being molested and raped! I realized...I can fuck her