...and I did look around for なきあら/ナキアラ (Nakiara) and なきゃら/ナキャラ (Nakyara) wherever I could find and there isn't anything convincing that I've found, especially with regards anime and manga.
To OP: Looking at name stats for Puerto
Rico from 1998 onwards, even though Nakiara isn't on the list, names with a similar make-up, like Nakisha and
Natisha, and the fact that
Kiara was popular when Nakiara was born lead me to believe that this name is basically
Kiara but prefixed with
Na-.
My PNL:
http://www.behindthename.com/pnl/149249'Maybe It Is Daijiro (aka
Maks)' blog:
https://maybeitisdaijirou.wordpress.com/'Beyond
Sakura and
Hiroshi' blog:
https://beyondsakuraandhiroshi.wordpress.com/My Twitter: @maybeitsdaijiro