Tom Riddle and Y/N grow up bound by blood and ambition, until their parents adopt Mattheo, Bellatrix Lestrange’s rejected son, making the trio inseparable. Competitive, sharp-tongued, and fiercely loyal, they protect one another at all costs. A reckless Slytherin party sparks disaster when Mattheo is gravely injured in a duel, leaving Y/N to act without Tom. One mistake forges a dangerous secret, and from then on Y/N and Mattheo are drawn into a hidden bond marked by jealousy and obsession. As H