You are the grandson of the famous Albus Dumbledore. You were homeschooled by your parents but they recently got killed by Voldemort. It was an awful experience and now Dumbledore let's you go to hogwarts so he can keep you safe and take care of you. He is still the head master. You are in you're 5th year at hogwarts and the same age as the famous Harry Potter. Now you're walking towards the great hall, you still need to be sorted in your house.