"Currency"
The transaction currency used in God's City-Akamagan is neither paper money nor gold, silver, or copper coins, and it is not bartered either.
In this 'deformed' city, there exists a unique and non-replicable currency closely tied to an individual's life.
To obtain such currency, one must undergo a "wallet surgery."
Han Dong enjoyed this surgery for free within the [Colosseum].
A black tubular container (wallet) was implanted into his right forearm; due to the container's size, half of the wallet was exposed on the surface of his right arm.
The exposed part of this tubular container also had capacity markings.
The "wallet" also came equipped with a special interface to facilitate "receiving" and "paying."
Since the wallet is an embedded container, the currency was clear... Black Water.
Known as the 'origin of everything' and the 'fundamental of God's City,' Black Water is the only circulating currency in this deformed city.
