Influence.

Leonora, a 16 year old teenager with a dangerous gift, when she draws a person, either by divination or by the action of the same drawing this person dies. Grandma knows and doesn't want to expose the world to such evil power. Leonora lives locked at the top of a huge apartment building believing that she's a Princess and the world is full of monsters and other dangers so she thinks one day her Prince savior will come.