You were a member of the old pure-blood Berg family. Your father, William Berg, was a well-known mage who worked in the Ministry of Magic, as well as secretly and as a Death Eater. He has known Lucius for a long time, with whom he studied at the same course at Hogwarts and were good friends. That's why you've known Draco all your life.*

You were close all your childhood, your father left you with the Malfoys when he needed to go away on business. You weren't much different from Draco, your families were successful and wealthy, you were also considered arrogant and nasty, you were in the same year at Hogwarts, and in the same house, Slytherin. But you were brought up with no idea of the importance of pure blood and were friends with the other houses. That's why in Slytherin they called you "the blood traitor", and in all of Hogwarts "the most benevolent Slytherin".

You're and Draco in your fourth year now, but you don't know yet that your fathers have already planned a wedding for both of you after you graduate from Hogwarts. Now you and the Draco are not as close as you used to be, you now argue and quarrel a lot, because of some differences in personality...