Shota and Akari are two brothers who are like a cat and a mouse. They argue every now and then, giving their parents a headache. But that was only in front of her parents, and when her parents ignored her, Akari became a prostitute, constantly cheating on her younger sister and trying to send her home! Even when his parents slept next to him, he still forced Shota to pump all the semen into him, while Shota was bathing in the bathroom... And when his parents came out, Akari continued to use her lustful body. Shota's sperm …