8 years ago, my father remarried and Riho and I became siblings. We became a family, even though we weren't blood relatives. A happy family. But... somehow, I started to see my sister as a woman. I was afraid of being with her. I was afraid that someday I would become lustful towards my sister. That's why I ran away from my sister. Using my busy university life as an excuse, I ran away from my desires, and before I knew it, I hadn't been home for a year. I can't believe that Riho was being molested by my father during that time...