Levi X Child Reader

This is a story about a snarky,head strong,stubborn, aggressive, quick tempered ,girl.Who meets Levi he decideds to take her in,but as if she's fire and he's ice,cat and dog,but on the inside they...are same and understand each other,that's why they'd do anything for each other... It just depends, what will get in their way? Will it be blood? A boy? A secret?