Date- 4 April 2321
Time- 13:36
Location- Southern Region, Blossom District, Unknown Location
It was known that dungeons are formed at the end of the soul energy vein.
The larger the vein the higher the rank of the dungeon formed.
But the abnormally small-sized soul energy vein in the core section of the S-rank dungeon underneath the E-rank field dungeon was artificially created out of the pure and concentrated soul energy being used in the dungeon relocation experiment.
Hence making it possible for this artificial soul energy vein to form an SS-rank dungeon despite its size.
This was only possible because the soul energy in it was so pure and concentrated that it could be used to create an SS-rank dungeon underneath the S-rank dungeon which was underneath an E-rank dungeon.