Castellan

At age of 21, as Master of Hollows Harry Potter becomes Harry Potter-Peverell and with it the Castellan of Hogwarts. With Voldemort dead and peace restored, though, Hogwarts doesn't really needs a Castellan but the same couldn't be said for a world where Voldemort has just been resurrected and the Ministry is in denial. Trouble trails Harry and this time is no different.