(Thank you very much to 'Wufeng Haotian', 'Silver Sparkle 7', 'Long Lian Qingxue', 'Q Yongjiang Yiku Q', 'Fleeting Years', 'Potato Slayer', 'Yan Ai Ai', and 'One Rider, Ten Thousand Strong' for the tips!)
Inside the Treasure Hall of the Nazarick Underground Great Tomb stood mountains upon mountains of gold coins.
Those coins were naturally all gold coins from YGGDRASIL.
Considering the number of gold coins in the Treasure Hall of the Nazarick Underground Great Tomb, no one would believe anyone who claimed there were not many.
However, no matter how many there were, they would eventually be used up one day.
If the various maintenance and operating costs of the Nazarick Underground Great Tomb could only be paid with gold coins from YGGDRASIL, then their usage would indeed have to be restricted to the absolute minimum.
That way, many Magical Beasts requiring summoning fees could not be effectively replenished. The magic spread throughout every corner of every floor of the Nazarick Underground Great Tomb would have to be activated or deactivated as circumstances required to save on the cost of activation media. The same applied to every other aspect.
Therefore, whether money from outside YGGDRASIL could be used for the various upkeep costs of the Nazarick Underground Great Tomb would affect Nazarick's future development as a whole.
In particular, if the gold coins in the Gate of Babylon could be used for the various upkeep costs of the Nazarick Underground Great Tomb, then Nazarick would enter a tremendous period of development and strengthening.
After all, the gold coins in Noah's Gate of Babylon replenished automatically and could never be exhausted.
If the gold coins in the Gate of Babylon could be used for payment, then it would be impossible for the Nazarick Underground Great Tomb not to undergo massive development