What school-aged peer is Harry's nemesis throughout his time at Hogwarts?
Draco Malfoy.
<s>[INST] <<SYS>> Answer as briefly as you can to the following question. You are required to give a one-shot answer: <</SYS>> What school-aged peer is Harry's nemesis throughout his time at Hogwarts? [/INST] Draco Malfoy. </s>