10年ぶりに帰省した実家。そこにいたのは、ボサボサ頭でゲーム三昧、美意識皆無のナマポニートに成り果てた姉だった。ただ、ヨレヨレのシャツからこぼれ落ちそうな推定Lカップの爆乳。ノーブラで無防備に晒されたその肉弾ボディを見て、弟であるはずの僕の理性は…長年の引きこもり生活で熟成されたメスの匂い、自慰に明け暮れ、長年生チンポを求めキュンキュンに締まりまくる無法地帯の芳醇姉マ●コ。「お姉ちゃんゴメン！もう我慢出来ない！！！」一線を超えた姉は新しい弟愛だ！親不孝ベイベー！
I returned to my hood home for the first time in 10 years. There I found my sister, a NEET living on welfare with messy hair, addicted to video games, and absolutely no sense of aesthetics. However, her enormous breasts, estimated to be L-cup, were spilling out of her worn-out shirt. Seeing her defenseless, braless, voluptuous body, my reason as her younger brother vanished… The scent of a female matured from years of isolation, her lawless pussy throbbing with desire for a cock after years of self-gratification. "Sorry, sis! I can't hold back anymore!!!" My uous sister crossed the line, and it was a new kind of brotherly love! Unfilial baby!

– JavGG.net