Yamete! Onee-chan!! Shiroi Oshikko ga Dechau!! / やめて！ お姉ちゃん！！ 白いオシッコがでちゃう！！

Yu younger brother, Miu older sister:
Miu took care of her younger brother too much with her love and care.
However, their parents were worried about her excessive love for her brother.
And they decide to send Miu away from his brother, to a boarding school.

As the years passed, there was no connection between brother and sister, but in the end Miu returned home after graduating from boarding school.
However, her attitude towards him completely changed.
The former loving and caring elder sister was now cold and reticent.

With her parents present, Miu was forced to erect a wall between herself and Yu, barricading her true feelings.
However, as soon as her parents left, Miu instantly changed her personality.

Unfortunately, Yu was careful. He wanted to make amends.
He still blames himself for the sudden and forcible transfer of his sister to a boarding school.
With each passing day, Miu's desire for her younger brother grew, and she was losing patience.
Cornered, she resorted to the last resort - to seduce her younger brother with her feminine charms.
She carefully watches her prey, ready to pounce on him at any moment, as soon as her younger brother cannot contain his sexual impulses