This unique erotic story features a protagonist who finds himself in an unexpected situation midway through the narrative, followed by a thrilling plot twist at the end! The scenes showcase his dominance over two female characters while they are being objectified. Initially living a life of luxury due to his role as their caretaker, he experiences a downfall after failing exams and becomes a social outcast. His once beloved sisters have now grown up to be mean girls who treat him like trash. When he introduces them to a sexual app, they quickly become his obedient slaves, performing various acts upon his command such as masturbating him, rough intercourse, creampies, bukkake, water sports, and even strangulation... or so he thought.

【こんな催●術作品見たことない！物語中盤に訪れるまさかの設定と、終盤に2転3転するストーリーの圧倒的構成力！それに付随して女子2人を物扱いする優越感抜群のエロシーンが組み合わさる！】妹とお隣の娘の世話を任され、支配者として君臨していた俺だったが受験に失敗し転落人生を歩んでいた。昔は懐いていた妹たちも今では俺をクズ扱いするメスガキに育ってしまった。そんな妹たちに催●アプリを使ってみるとあっという間に言いなり奴●と化した。オナホ扱いし、強●挿入、中出し、放尿、首絞め…と思いのままにやりたいことをやっていたのだが…？