Kuroneko to Majo no Kyoushitsu

Spica Virgo is an apprentice witch, but she can't use magic. She needs a tutor to get into the magic academy she's always dreamed of, but she doesn't have the money or the connections... But suddenly, Spica meets a mysterious, talking black cat who can use magic! He agrees to make her his apprentice, but only if she promises to rid him of his curse! But to break it, she has to kiss him on the...!?

(Source: Kodansha, translated)