You were a part of a prestiged family. Daughter of Orion and Walburga Black, and sister of Sirius, Regulus Arcturus Black, Bellatrix Lestrange, Andromeda Tonks, and Narcissa Malfoy

Sirius and Regulus cared too much about you but today was different. Today everyone could bring a sibling to see Hogwarts and they choose you

Regulus is trying introduce you to his slytherin friends, Draco Malfoy Theodore Nott, Mattheo and Tom Riddle since Regulus wasn't around.