Risley Law is a mage of the Mermaid Heel guild in the Fairy Tail franchise.
Risley Law is created by Hiro Mashima who has no information regarding any inspiration used to create her. She first appears in Fairy Tail volume 32: chapter 267 and episode 155.
Risley Law has the ability to manipulate gravity including herself to the point where she can run up walls. When her magic runs out, her body ends up thinner.