If there was a person who embodied “righteous” it would be her. Hikari has a very strong moral compass and sense of justice decided by his divine, God itself. It is extreme to borderline seeing things black and white. She can be lenient depending on circumstance or a very good argument. So she’s not completely unreasonable, she can be stubborn though.
Despite her sense of justice, she’s extremely compassionate, friendly, and understanding in things none pertaining to his divine’s commandments or the human’s world law and the law of nature.