Thirteen mature believers who have undergone 'machine modification',
patrolled the main towns of the Zothique Continent as usual, according to the requirements of the [Skeleton Storage Place], to detect the 'dark currents' mixed within.
During their secret patrol in Tomb Spinning Town, they discovered several unnatural ghoul deaths,
all of which had their spines completely extracted, matching the clues related to the dark currents.
Based on the hidden surveillance system in Tomb Spinning Town and the clues provided by the surrounding residents,
they quickly locked onto an elderly ghoul named [Aubad Thin Skin], who was highly likely to be the selected 'host body' and had been completely controlled.
When Aubad Thin Skin blended into the crowd and quickly boarded the corpse car bus heading to the capital,
the thirteen members of the Gear Secret Teaching also arrived in time and all boarded the bus.