Try this:
Anna was smart and she loved to play pranks on her friends.
Try this:
Until…she learns that her introverted sister/brother worships evil spirts. Can Anna stop Sam from going too deep and the spirts rip Sam away?
So the full new description:
Anna was smart and she loved to play pranks on her friends. Until…she learns that her introverted sister/brother worships evil spirts. Can Anna stop Sam from going too deep and the spirts rip Sam away?