Cora Rose is one of my favorite new authors. I've loved every book I've read by her so far and this book was no different.
This story and the characters were beautifully written. I loved the ADHD representation and how well it showed how it can effect life. It also showed living with diabetes and PTSD, just not quite to the extent ADHD was shown.
This story follows Emery and August who just became stepbrothers. There's a bit of dislike-to-like at at the start (not quite enemies or hate to love), but as August comes to understand Emery his dislike and frustrations with him quickly fade. They get lost driving to a winter cabin for a family vacation and have to survive a night trapped in a car together during the winter. They connect and learn some things about each other while stuck in the snow. The rest of the story follows the ups and downs of them figuring out their attraction and what to do with it.
Emery has ADHD golden-retriever energy. He can be a bit OTT and annoying due to how heavily his ADHD effect him, but is one of the most lovable characters I've read in a while. He's full of depth and nuance. 
August was the perfect balance to Emery's constant unpredictable energy. He accepted Emery for who he was and their relationship was really beautiful. I did get frustrated with August's struggle to tell his mom about their relationship, but it didn't ruin the story for me.
I found this story to a refreshing take on the stepbrothers trope and I really enjoyed reading the story.