

Ultimately, she wishes to live in a world that consists only of her and Nihilego, which she views as a surrogate family that is completely obedient to her. Though her daughter and son both try to warn her about the dangers, Lusamine does not forgive them for betraying her, showing utter coldness, as she does not want anything to stand in her way to obtain the power from the Ultra Beasts. In truth, however, she seeks for beautiful things she could "own". Lusamine was originally shown to be a kindhearted lady who is willing to "create a utopia for Pokémon".

Her hair turns black with blond streaks and her eyes are yellow. When Lusamine fuses with a Nihilego, she transforms into a dark-colored version of the Ultra Beast with her upper torso in the bell, her legs hanging out of the body, and several eyes on her tentacles with gem-shaped pupils. Her boots have a medium-height yellow heel to them. She wears a white dress with a diamond badge on it, black and white leggings, and boots of the same color, with green soles. Lusamine has blonde long hair with silver streaks and green eyes.
