Yui, who hasn't had sex with her boyfriend for six months, finally decides to visit her ex-boyfriend, Taro, after some agonizing thought. Of course, it doesn't end with a discussion, and before you know it, she's stripped and things get started. Thinking, "It's not cheating if it's just a blowjob, right?", she starts licking her ex-boyfriend's dick. Yui, the perverted girl, ends up swallowing his semen. Later, Taro visits the apartment where Yui and her boyfriend live, and gets turned on while he's taking a shower. The two sneakily start giving each other a blowjob. They nearly get caught by him, but the thrill is irresistible. As expected, he ends up crushing on her. Leaving her boyfriend alone, she can do whatever she wants! Enjoy this immoral NTR experience to your heart's content, as forbidden desires and guilt intertwine.