Born in the city on Earth, Antler was named after Nestor, both out of respect and hope that it would inspire him. It worked, perhaps a bit too much- Antler strives to be as protective shield for other cats, much like how Nestor protected his parents. He learned to be strong to fend off threats, and how to keep his resources defended.

As a lonely kitten, he was raised with Brook and Glen, both of whom were also lonely kittens. Still though, times were tough back then and the three often bickered. They still consider each other adoptive siblings, but they aren't as close as one would expect.