Izuku nearly gets expelled because All Might doesn't want to tell Eraserhead about OFA, so Izuku takes it upon himself to share the secret with Aizawa himself. Hizashi Yamada also gets let in on the secret.
Hermione saves Fred during the Battle of Hogwarts. He is absolutely smitten with her, and he's not afraid to show it. He becomes her protector and lover. When a marriage law works against her, only a week after the war ends, he's there to save her from any unwanted suitors.