Mount Fuji was an active volcano currently lying dormant, with eighteen historically recorded eruptions. A full three hundred years had passed since the last Great Hoei Eruption.
Beneath its snow-covered crater lay another world. What stirred there was not scorching magma, but countless bizarre, terrifying monsters lurking restlessly!
Inside the monster cavern within Mount Fuji, a thick layer of spider silk covered the rugged, multicolored rock walls like a spider's nest. White cocoons hung upside down in tightly packed rows, numbering well over a hundred.
At the center of the web crouched a spider monster with eight spider legs and eight arms, the densely packed eyes on its head scanning its surroundings warily.
Right under the spider monster's eyes, a fresh green sprig pierced the solid rock, then kept growing until it formed a face tinged with woody green.
"These monsters wrapped in spider silk and hanging upside down look rather like the ninja strung up by the God Tree after the Infinite Tsukuyomi."
Uchiha Naruto pulled free of the rock, his feet clinging to the wall as he surveyed the scene with interest.
Yet the spider monster remained completely oblivious. Its many eyes might as well have been ornaments as Uchiha Naruto brazenly counted the cocoons hanging along the cliff face, as though no one else were there.
Uchiha Naruto's face showed the joy of a farmer harvesting wheat in autumn.
This Wood Clone had been lying in hiding here for half a month.
Throughout that time, monsters had been continuously transported into the cavern within Mount Fuji by the enormous black monster that used the Subterranean Voyage Technique.
By the day before yesterday, the number of imprisoned monsters in the cavern had passed the hundred mark.
Faced with these ripe fruits ready for the picking, Uchiha Naruto naturally