The NemeSis by A.R. Hall

Ares Drakos
Avoiding the one person I couldn’t stand was supposed to be easy. I had every trip home planned to ensure I never saw her.
But then my mother and brother insisted I come home for quality family time. I knew better, but found myself unable to stay away any longer.
With us under one roof, avoiding her was impossible. Definitely not when her room was next to mine. Then she asked—begged—for my help, and I knew I could get my revenge.

Kyra Storey
I’ve dedicated the past two years to establishing my reputation. College was my way of demonstrating my independence and self-reliance, apart from my family’s connections.
But when a once-in-a-lifetime opportunity arises—an exclusive event hosted by a secret society on campus—everything changes. The only way I can pull it off? Asking for help from someone I haven’t spoken to in nearly four years.
Ares wasn’t always the villain in my story. Before he became my stepbrother, he’d been my friend and protector. He was never meant to be the monster that crept in the shadows, not when he’d once been the one to fight them off.

His darkness only came out around me. Now that I need his help, it will surround me.
It wasn’t a problem.
Not until I craved it.