Kagura Mikazuchi is the leader of the Mermaid Heel guild in the Fairy Tail franchise.
Kagura Mikazuchi 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.
She wields a katana called Archenemy, and according to her guild members, she has never unsheathed her sword so far. According to Millianna, she will only unsheathe her sword to kill Jellal.