Hmmm sounds like After Harry except he is constantly angry
Calm down Harry, your dark is showing<--- omfg you'VE READ IT TOO
This is like After Harry...OH MY GOD. #after
OMG! Harrys dark side is mean but the little angle inside if him takes over <3 LoVe HiM
Harry Potter headcanon. This one is dark and very sad.
The oh-so-famous Harry Styles Smolder. My legs just turned into bags of Jello. GOING DOWN, GUYS HELP.
Actual vampire Harry Styles
He is still continuing his tradition!
So, this fan fiction called Dangerous is absolutely fantastic. I'll put the link in the comments. Warning: it's kinda pg-13, but it's a Dark Harry story without actually being 'the' DARK. Please read it! It's so good!