[Harry Potter] Hogwarts on a 24-Hour Clock

On the day Cynthia turned eleven, she received two Hogwarts admission letters, one after the other. Thinking they were the same, Cynthia accepted both invitations at once. From then on, she attended Hogwarts during the day and Magic Awakened at night, with no breaks, twenty-four hours a day. The moment the Sorting Hat placed her in Slytherin, a calendar appeared in Cynthia's mind. It read: On the first day of Hogwarts, Voldemort will return when Harry Potter competes in the Goblet of Fire during his fourth year. Huh? This Voldemort you're talking about, is it the same Voldemort I know? Because Cynthia Black smiles like Sirius Black, Snape gave her detention the very first time he caught her, claiming her potion brewing was unsatisfactory. ? But it was a perfectly brewed Cure for Boils. Professor, don't bully me just because I'm blind. Cynthia later learns she's actually Sirius's stand-in. She thinks: Taking the blame for your uncle, anything but you will only hurt you! Professor! An impulsive student who went blind at eight while studying Dark Magic and seeking power X Professor Snape The heroine's eyesight will recover. A fix-it fic. She starts Hogwarts two years before Harry. Original setting: Regulus's half-blood daughter. The romance won't begin early or become clear right away. Theme: Love is the greatest magic