One day, Kei's mother's friend Anzu and her family came to visit. He had met them before, but seeing Anzu's large breasts and voluptuous body now that she was of age seemed lewd to him. Kei could no longer suppress his desires; he would masturbate with Anzu's underwear and, when her son wasn't around, he would cuddle up to her and grope her body. His actions escalated further, until finally…
