Majuu Jouka Shoujo Utea

Japanese: 魔獣浄化少女ウテア

Plot
Karen and Mitsuki are two best friends that they become Charm and Grace by a mysterious fairy against the Lust Demons. When Karen first discovered that Mitsuki was a magical girl, she decides to help her out. As the series progress, Karen wants to become a regular girl again until Mitsuki went missing, as the fairy revealed the Utea Project.