Nix minus one / MacLean, Jill

Told in verse, quiet Nix is the polar opposite of his older sister Roxy, Nix feels powerless to protect Roxy from the toxic guy she is interested in, but finds he can protect Twig, a neglected dog.

Fifteen-year-old Nix Humbolt both loathes and adores his older sister, Roxy. He loves her vibrancy, but hates her choices, especially her latest one--going after scumbag Bryan Sykes. She won't listen to him, and that seems like the end of the matter. Needing to fight a battle he can win--besides ones on his video games--Nix decides to rescue Twig, a neglected dog.