The value of a Magic Crystal lies in the dense magical energy contained within it. The denser the energy, the darker the color of the crystal. Therefore, beyond its practical value, a Magic Crystal can also be traded as an ornament.
Thanks to Kyushu's prevailing culture of martial reverence and dedication to cultivation, Magic Crystals are considered high-end luxury items among Heavenly Materials and Earthly Treasures. Additionally, due to their almost impossible-to-imitate quality, they serve a certain monetary function.
The currency in Kyushu primarily relies on silver and copper. Unlike the West Continent, Kyushu lacks abundant gold mines but has plenty of silver.
However, since Kyushu has not yet adopted paper money, societal transactions can only be conducted using copper coins or silver coins as payment.
