Mermaid Heel

Mermaid Heel (マーメイド・ヒール Māmeido Hīru 人魚の踵) is one of the Legal Guilds in Fiore.

Overview
Mermaid Heel is known as an all-female guild, with the entirety of its shown members being females. It's currently unknown whether males could be given access to the guild, since Hibiki Lates jokingly said he would have joined Mermaid Heel without being contradicted; Toby Horhorta, however, angrily commented the Blue Pegasus Mage "is way off their theme".

Location
The guild's location, aside from it being in Fiore, is as of yet unknown.

Strength
Mermaid Heel appears to be a considerably powerful guild, whose team for X791's Grand Magic Games made it 6th out of eight squads completing the preliminary event "Sky Labyrinth", which had 105 other competing guilds disqualified. Such an achievement is made more notable by the fact that one of the teams they managed to outrun, representing Fairy Tail, formerly the strongest guild in Fiore, and counting strong individuals such as S-Class Mage Erza Scarlet and S-Class candidates Natsu Dragneel, Gray Fullbuster and Elfman Strauss, made it only 8th during the preliminaries, barely gaining a place to take part in the real Games. Most of Mermaid Heel's power and reputation seems to stem from its strongest Mage, Kagura Mikazuchi, who has been described as being on the same if not higher level as Erza Scarlet, one of Fairy Tail's S-Class Mages, as well as the guild's most powerful female member.