(Disclaimer: I am a fan of Hamburg, I am a fan of Hamburg, I am a fan of Hamburg. I will say important things three times. Also, I will rewrite the plot, but the ending is still happy. I just want to write my own magical world.)
If Harry becomes Harley, hey hey hey!
Wouldn't Malfoy want to catch Harry, oh! No, it should be Harry. Will Professor Snape use Avada to fight against Voldemort...
Also, in that era without mobile phones, their childhood must have been boring and pitiful.
Intention: To be added~