A silvery, humanoid creature shot out of his wand. Surprise momentarily flitted over his features; he wasn't aware he could produce a patronus. The patronus headed towards the front of the class, where it passed through Hermione. When it passed through, she visibly relaxed, almost leaning into the Patronus. Tom's Veela whispered, She's the one. She's my mate.

It felt like a gesture from a brother, someone I will never leave behind.

Harry James Potter is the Prince of Gryffindor. Hermione Jean Granger is the Princess of Ravenclaw. One day, their parents suddenly decide for the two to get married, without ever seeing each other before that. They both remember the way the other was during school, but what about now? How does this turn out?