Draco Malfoy’s sister is wild, unpredictable, and untouchable bipolar, a druggie, and at the heart of Slytherin’s chaos. Mattheo Riddle has loved her in silence for years: brooding, possessive, protective, and always ready to fight for her, even when she doesn’t notice. Everyone in their circle knows his obsession—but she remains blissfully unaware, leaving desire and danger to simmer just beneath the surface.