OL

In Slytherin House, loyalty is everything. Mattheo Riddle and Theodore Nott have spent their entire lives standing shoulder to shoulder. Bound by blood, legacy, and an unbreakable friendship, they’ve survived every rivalry, every secret, and every war life has thrown at them. Until her. Y/N is everything a pure-blood witch is expected to be: intelligent, ruthless, and impossible to intimidate. She has no patience for arrogant boys with famous last names, especially Mattheo Riddle, whose sharp tongue rivals her own. Their hatred is instant, their arguments relentless, and every encounter leaves them wanting to walk away… or get impossibly closer. Theo is different. Quiet where Mattheo is chaos, patient where Mattheo is reckless, he sees the pieces of her she works so hard to hide. Their connection grows in stolen moments and dangerous silences, until friendship becomes something neither of them can admit. As feelings turn into obsession, loyalty begins to fracture. Jealousy poisons lifelong bonds, ancient pure-blood expectations close in, and secrets buried beneath Hogwarts threaten to destroy everything they’ve built. In a world where love is considered weakness and betrayal is paid for in blood, choosing a heart may cost them their brotherhood. Some wars are fought with magic. The deadliest ones are fought for the person you’re never supposed to love.