While their parents were away, Yui spent time alone with her older brother. In the privacy of their room, playing karuta together, their hands brushed and their eyes met, hearts racing with excitement. With a pure smile, her slender body trembling, she was surrounded by her brother's cock and repeatedly filled with creampie after creampie. "I love you so much, big brother! Come inside me again and again!" she passionately pleaded.