Mattheo Riddle and Y/n are enemies, the enemies of enemies. They never get along. Y/n(the eldest sibling) has 2 siblings, Pansy and Draco. Pansy and Y/n are in the Riddle manor with Bellatrix Lestrange and Narcissa Malfoy while Mattheo, Tom and Draco are in the Malfoy manor with Lucius Malfoy. Until something happens which makes them get close.........