Ouroboros Fang

Ouroboros Fang, is an all male guild, that appears in the story Eye of the Black Dragon. It was initially a rather anonymous guild, that few ever paid attention to, but during the time skip, it managed to rise to the big leagues. It is currently the rival to Mermaid Heel.

Overview
Ouroboros Fang is an all male guild, where it appears that only men seem to be members. The members have a strict sense of camaraderie to each other, as each members refers to their guild mates as their "brothers".