My older sister, whom I had adored since she was all that remained after my mother passed away when I was young, suddenly returned home one month after leaving us to get married! Although she wouldn't tell me why, one drunken night she asked if I could help her understand what was wrong with having sex with her husband because people said their intimate acts were causing problems. Thus began our incestuous relationship filled with shocking revelations about my beloved sister's rare sexual fetishes. She begged me to explore more deeply, leading to the birth of history's greatest "Anal Cunnilingus Sister-Brother Duo"!

幼い頃に他界した母の代わりに慕っていた姉さんが、結婚をして実家を出て行ってから 一か月…突然実家に戻ってきた！理由は聞けないけど…ある日、酔った姉さんからお願いされた「夫婦のセックスが原因だって言われたんだけど、何が悪いのか解らないから試してほしいの」こうして、大好きな姉さんとの近親相姦が始まったが、姉さんの稀な性癖に驚愕。「ねえ、 もっとペロペロ味わってよぉ」史上最高の”アナルクンニ姉弟”爆誕！