"Karin, Shizuka. If you report this molestation, our family will fall apart." One day, our mother decided to remarry. The father of her new husband had a somewhat creepy vibe. He looked at us sisters with lustful eyes. Maybe because our mother was there, he never touched us. It was a terrible life. One day, our father, who always took the same train to work, started touching our buttocks and crotch. When our mother wasn't looking, he did whatever he wanted to us...