MIDE-597 Shoko Akiyama, an older sister who had to start working as a female student again after her false academic background was discovered.

A demon-like older sister who is always arrogant and bullies her younger brother (you). - This time, after being accused of falsifying her educational background, she decided to start over as a female student! - As a result, he becomes your junior, and his position falls to the lowest level of the family! - A once-in-a-lifetime chance has arrived, and it's the beginning of revenge time where she can do whatever she wants to her sister, who no longer has the right to speak when she gets home! - ! - This is Shoko Akiyama's first work in uniform, where she repeats rebellious behavior and loses to the cock every time!