In the AV industry where pseudo internal ejaculation is rampant, we aim for true internal ejaculation! A man who borrowed a total of 1.5 million yen from a loan shark. Today is the day he has to pay the interest. With no way to pay, he is cornered by the men. Learning of his sister Chiharu's existence from his phone, they summon her. Driven to desperation by the relentless pursuit of her brother, Chiharu says, 'I'll do anything I can.' At the men's behest, Chiharu is forced into incestuous sex. After internal ejaculation, the desperate siblings face further demands from the men... Chiharu is also toyed with by the men and ultimately ends up being internally ejaculated on...
