Lia

Lia (リア) was the younger sister of Luka Millfy, who looked after her and the other orphans with Cain on a planet which was attacked by Zangyack. Luka made a promise to herself that she would create a place where these orphans and many others could live in peace, even if it means buying an entire planet to do so. Ultimately, however, Lia died due to an illness, and so Luka left the planet to obtain funds by stealing Zagins and energy crystals from Zangyack warehouses before joining the Gokaigers.