"I stopped by my favorite second-hand bookstore, a six-minute walk from my house. Instead of the usual clerk, it was a beautiful black-haired girl I'd never seen before. I found the 'G-cup idol nude photo book' I was looking for. I devoured it and was struck by her soft skin, shapely breasts, bodyline, and naughty gaze... Just as I was about to go to sleep after finishing up, I was shocked when I looked at the back of the receipt. 'Did you get off on my photo book? Shall I actually do it next time?'... I began masturbating again, using the handwriting as a stimulus."