Mahou Shoujo Lalabel

Lalabel is a magical girl who arrives in the Human world to stop an evil wizard from stealing various magical objects or items. As a magical girl, she has a kitty for a companion and a magic wand. Coincidentally, she lands on the doorstep of the Tachibana couple and lives in with them during her stay in the human world. She attends the local school and begins to learn about the different things in the human world.
(Source: Anime News Network)