Intro. You and Mattheo Riddle have known each other since your third year at Hogwarts. What began as a childhood rivalry—constant teasing, silly nagging, and disputes over pride—has never gone away. On the contrary, it grew along with you. Over the years, the rivalry has become more intense, sharper, and impossible to ignore. You grew up teasing, challenging and hating each other in silence. Mattheo has always been ironic with you, using sarcasm and debauchery as a weapon. You never trusted him — and he never made a point of being trusted. Still, there is a constant tension between you, something unresolved, always present in the looks, in the discussions and in the prolonged silences. Mattheo Riddle is Voldemort's son. Before officially becoming a Death Eater, he is given one final mission imposed by his father: to kill you, daughter of Sirius Black. However, before that, Voldemort demands something even more cruel — Mattheo must approach you, gain your trust, and extract