Soul Eater NOT!

Synopsis

Whilst Kim has Tsugumi and the others, along with Jacqueline, help out with cleaning the pool, Sid receives word that the Traitor from earlier, who has been taken into custody, may have been enchanted by a witch. Noticing that Jacqueline has a desire to become Kim's partner, Tsugumi and the others decide to help her try and befriend Kim, but none of their attempts seem to work out as planned. Later, Jacqueline stumbles across Kim as she uses magic to heal an injured puppy, learning that she is in fact a real witch. As Kim becomes devastated at being found out, stating how she came to the DWMA to escape the world of witches, Jacqueline decides to keep Kim's identity a secret in exchange for treating Tsugumi and the others to ice cream. Thankful, Kim agrees to make Jacqueline her partner.

(Source: Wikipedia)