In a rural town suffering from depopulation and few children, my only joy was Anna, my niece who occasionally came to visit. After losing her father in a traffic accident as a child, she would only play with me. She was cheerful, bright, honest, kind—utterly adorable. Even now, she continues to visit me just as she always has. With almost no entertainment available in this area, Anna's presence as a conversational partner for an old man like me is beyond precious. From the bottom of my heart, I truly wish for her to grow into a fine adult, move to the city, find a good job, marry a good man, and live happily. I really do wish that. I should be wishing that... And yet, her body has gradually matured, transforming her into an increasingly sensual being. Her voluptuous figure and large, alluring areolas shake my resolve just by their presence. Torn between desire and morality, Anna whispers to me, "It's okay... You can do whatever you want to me..." Her words shatter my restraint. My niece has become too mature for her own good.