Luna has a soft British-English accent. 

Lunafreya is a noble and dutiful woman who talks about her hopes and dreams and acts on her own initiative. She is always cordial and polite to those around her, but is also a political strategist who puts her duties and the well-being of her people above her own needs. She focuses on the future and works to prevent the world from plunging into complete darkness. Befitting of her duties as Oracle, Lunafreya possesses unparalleled compassion.