Hogwarts: Heir to House Severn

His surname is Sai Win The oldest name among the twenty-eight pure-blooded saints appeared in Hogwarts for the first time in a thousand years. When the Malfoy heir saw him, his face turned pale and he took half a step back. Professor Snape asked questions in class, and he answered them flawlessly. In Charms class, he used a silent spell to make feathers fly across the classroom - it was a N. E. W. T. Level magic. Dumbledore looked at him, his eyes behind his half-moon glasses looking away for the first time. He is a Slytherin. He is a pureblood of purebloods. He was an existence that even Voldemort didn't know existed. But he saved a Muggle-born girl. "Why?" Hermione Granger asked him, "Why are you helping me?" He didn't answer. Because even he himself is not sure of the answer - is it for the thousand-year-old family secret, or for the eyes that are still burning with fear and unwillingness? The heirs of the Sewen family cannot take sides. The heir of the Saiwen family cannot be exposed. The heir to the Severn family cannot— But he has already taken action. Voldemort watched him from the dark. Dumbledore looked at him in the open. The mysterious man wandering in the forbidden book area has the same badge embroidered on the corner of his robe. The chess game at Hogwarts is set. And he is the chess piece that everyone is fighting for. But he doesn't want to be a pawn.