​A dungeon exploration contest: the stuff of legends; a test of survival in an underground maze filled with deadly traps; a trial famously undertaken by the six heroes of yore. And now the Guild wants to use this to train would-be adventurers! Several Silver-ranked warriors are recruited to help run the competition, and the traps they create shock Guild Girl to her core. As preparations commence and an aspiring adventurer takes up her sword, though, a shadow of Chaos lurks just out of sight...