A list of characters who appear in the Luminous Heart in the series.
The main protagonist of the series. She is a 11-year-old purple alien girl with six arms. She is an average girl who does not fit in with the other kids and is nervous about her new responsibilities and fears what the rest of the people might think about her. During the game, it is shown that she develops a romantic interest in Ernest, although initially she does not show much appreciation for him. Her appreciation changes for the better after he saved her life in the first game. She starts the first game unable to glow, but ultimately finds herself able to glow when her survival depends on it.