Gaikaku Cavern

Gaikaku Cavern (外殻洞 Gaikakudō; Literally meaning "Outer Shell Cavern") is the holy and secret location of the Minotaur Horn guild, and the house of the deceased founders of the guild, The Three Wings, Prima, Secunda and Tercia.

The ground was the final location where the S-Class Wizard Promotion Trial took place, and only the last teams gained access to it. The gate is sealed with a giant rock that can only be removed by the destruction of the barrier that encases the cave.

In order to break the seal, one must utilize the Horn of the Weary Bull, making the sound vibrate the rock and shattering it. The horn is currently in the possession of Old Vestoren, the current guild master.

The main hall of the cave is a circular room, resembling a Colosseum. Most of the built parts were destroyed, either by time or by magic used during fights in the trial. The only remaining wall is full of arcs, where people can sit and spectate. The feature that stands out the most are the three statues of stone on the walls: on the left, there is a bull, on the middle, an angel and on the right a bird.