Des:Karen, my girlfriends younger sister, who I miss. I even thought she was annoying at first... My feelings changed after she started to suspect that the person she was going on a trip with was a man. She was worried about her... I used your sister to distract me... Id rather cheat on you than be cheated on... Thats how I felt, but... Karens behavior toward Karen, who accepts everything, escalates. Cheating, betrayal, and sex are no longer enough, so blindfolding, shackling, training, and... During a trip with my female friend and friend, I happily trained my female friend and younger sister to masturbate their meat for 3 days. Karen Yuzuriha