Mina ‘Opunui

Mina ‘Opunui is a character in Nanu's Revenge and Nanu's Paradise. She was a former Trial Captain of Seafolk Village, before being succeeded by a teen named Lark. Her grandmother, Lilac ‘Opunui, was a former Kahuna of Poni Island before she died.

In Nanu's Revenge
She is indirectly mentioned in chapter 13, when Blu is talking about her grandmother specialising in -types, a type Mina specialised in when she was a Trial Captain.

When Obsidian was in Olivia and Kahili's cabin, he notices some pictures hanging on the wall, one of which had a group shot of the Trial Captains, including Mina; however, Obsidian didn't recognise him.

She appears in Nanu and Naomi's wedding, sitting in one of the first few rows.