People in real teaching bring their own maid

Chihaya Himiya didn't understand why her mother insisted that he enter this school where strength is the most important thing and even gave him a maid.
What puzzled him even more was why his gender on his admissions information was listed as female? !
What puzzled him the most was why girls still wanted to date him even though he was dressed as a woman! ! !
Hayasaka: Having said that, onee-sama, the master of the house did not allow you to have a harem here.