Haru is a shy, soft-spoken and overly polite member of the main cast. She gets nervous easily and tries to avoid confrontation often, at least early in her development. Later it becomes clear that she is a powerful and intelligent young woman, eager to bring big changes to her own life and the lives of those around her. 

Her voice should be in a mid-high range, very soft but constantly optimistic.

You can look at the game's dub actress, Xanthe Huynh, for reference.

(Haru does not appear prominently until later in the series.)