Black's brother's sister

Electra Walburga Black. Sirius Black's younger twin sister and Regulus Black's older sister.
She is transferring to Hogwarts in his second year.
What kind of track will he get into?
Will she be able to improve her relationship with her parents by at least a little?
Will he fall in love with someone?

All the rights to the characters of the place whose names
I did not invent myself belong to J.K. Rowling

The story is not written for profit.
I have dysortography.
I will correct grammatical errors continuously.
If you finds any, write in the comments.
I created the cover myself.