Quoted By:
Hala is a tree species that is found across the pacific. He has a bunch of deepest lore along with crabomidable. See the pic. One of his names might have to do with pectoralis muscles because sumo wrestling and whatnot.
Olivia is named after the Olive family in general because she's smart, dark, there are species belonging to the family in Hawaii, and virginIf you don't get it, they're even making fun of her being single in the background lore. Her name actually also refers to olivine. It's one of the most common crystals in Hawaii due to its volcanic origins. She also owns a jewelry store and carbink. Relicanth as well if you feel like calling her old.
Nanu is Gardenia brighamii or one of its congeners. It's a very pretty white gardenia flower that makes a beautiful accent. There is only one tree surviving in the wild. It's congeners are also either extinct or close to it. It's sad. If I were to anthropomorphize it, it'd probably be miserable. The species itself however has been kept alive through captive propagation. I could buy one at Home Depot for maybe $11. If you want to stretch, it's like how bulu, the tapu who deals with plant life, forces Nanu to stick around and do his job.
Hapu is probably Hapuu tree ferns. They are slow growing and brown. They can also either be really stubby or rarely up to 30 feet. They grow extremely slowly though. If I remember correctly, about three cm a year. Live to be ancient. Hapu lives with her grandma and acts ancient.