He had thought it was a despicable trap set by the ruler of the Netherworld, designed to detain him for half an hour and thus thwart his efforts.
But unexpectedly, hidden behind this golden gate was top-secret knowledge and memory information.
This particular memory, "How the Ruler of the Netherworld Was Formed," was dated even before the arrival of the three-eyed young senior!
It was a treasure and mental energy brought back from the Ancient Nether World by the former 'Heavenly Dao's Three Eyes' experiment. It started the detailed process of creating the 'Ruler of the Netherworld' and various complex theories.
After successfully fabricating the experimental subject, Eyes Repose, this precious memory was stored in the Companion Magic Device of Eyes Repose and was sealed for protection—it was unknown whether the three-eyed young senior had ever viewed this segment of memory information.