Since childhood, KYOUKO has been my idol. Now grown up, her soft breasts and tight waist have transformed her into a gorgeous, alluring woman. She's married to my older brother Akito, and starting next spring, we'll all live together under the same roof at the Matsuo household. But ever since I heard the news, I haven't been able to stop fantasizing. I'm obsessed with imagining the two of them together—KYOUKO on all fours using a vibrator, passionately masturbating, lost in pleasure. And then there's the thought of her caring for my bedridden father—gently licking him all over, tenderly watching over him, filling my mind with uncontrollable desire.