GDTM-187 - (The sad truth that I never wanted to see) of NTR (my younger sister who was devoted to her family and who I thought was still a child) (I accidentally found her smartphone) An Nonomiya

I'm a NEET and don't have a job...but I have a cute little sister that I'm proud of. My little sister, who is popular at school, popular with the boys, and is good at studying, came to cheer me up as I stood in the park. At that time, I looked inside my smartphone, which I had forgotten about. There was an unbelievable obscene video of my younger sister in it...I couldn't believe it...only for him...