Hirokazu finds himself seduced by his classmate, Akazaki, but he is still drawn to his sister, Honoka. As Hirokazu contemplates making Akazaki his girlfriend, he is seduced by Honoka. Next, a junior high student, Toyomoto fell in love with Iizuka when he first saw her playing baseball. Now as a high school student, Iizuka offers to become Toyomoto's girlfriend, but he must pass his exam before he is able to see all of her. Another, Haruto eagerly obeys his elder sister, Aisa's every command, especially the ones that involve seduction.
Follow the romping adventures of these boys and the older girls who seduce them in this anthology featuring eight stories of brothers and sisters seducing one another and having fun while they explore their deep desires.