Nemea said she has been collecting samples of creatures in Abyss while traveling around Reshanta. She came to the Isle of Roots to study the Sulphur Oculazen and Lava Hoverstone, but encountered trouble when Embers obstructed her study. So you got rid of the Sulphur Oculazen and Lava Hoverstone and collected the samples for her, earning her respect.