Voiced by: Rie Kugimiya (JP) and Cristina Valenzuela (EN)
The main female character and a second-year student at the Tristain Academy of Magic... with a terrible track record in practical magic, thus her in-school nickname "Louise the Zero" for her lack of success rate and elemental attributes. He presence is only mostly based on being the third (and youngest) daughter of the aristocratic La Vallière family, who runs north-eastern Tristain. On a summoning ritual, she accidentally calls upon ordinary Japanese boy Saito Hiraga, and her life will never be the same again.
mermaid melody
