HP: Thorns and Birds

Harry Potter's own generation [Cynthia Malfoy x Sirius Black] Original heroine, sister Lucius Malfoy The whole school knew that Slytherin's little princess Cynthia and Gryffindor's demon lord Sirius were sworn enemies. In Potions class, he threw a screaming fake spider into her cauldron. She was so frightened that her fingertips turned white, but he turned around and secretly stuffed a tranquilizing candy into her pocket; During the Quidditch match, she yelled at his broom, "You deserve to fall to death," but when he almost fell to the ground, she tightened her wand. Everyone thought they would fight until graduation, until that moonlit night. At the edge of the Forbidden Forest, Cynthia had an asthma attack and fell to the ground. In her blur of consciousness, she felt a warm black shadow wrap around her. It was a large black dog that rubbed its mane against her face and whimpered like a child. Later she found out that it was Sirius' Animagus. From "Malfoy" to "Cynthia", from "Black" to "Sirius", they used countless quarrels to cover up their care, and in the thorn bush of prejudice, flowers that only each other could understand quietly bloomed. "Hey, Slytherin, do you want to run with me?" "Where to go?" "To a place where there is no family name, just you and me." [Demining: Background of the original work, slow-motion pulling and pulling, mutual hostility in the early stage, two-way running in the later stage, daily apology to the campus, no Peter, ooc]