The older sister is found out that her educational background is false and she ends up having to start a female student again

She is always arrogant and devilish older sister who teases her younger brother (you). I was recently asked to start over as a female student after being asked to misrepresent her academic background! As a result, he will become your junior and your position will fall to the lowest level of your family! A great opportunity has arrived, and this is the beginning of a revenge time in which my sister, who no longer has the right to speak, does whatever she wants when she gets home! ! This is Akiyama Shoko's first uniform work, where she repeatedly speaks and acts rebelliously and loses to a dick every time!