The primary form of the Heavenly Gang Yin Yang Rotation Array has been set up, greatly enhancing the defense capabilities of Hongmeng City.
Although there are not many Immortal Arrays inside and outside Hongmeng City at present, with the protection of the Heavenly Gang Yin Yang Reincarnation Array, it can resist ordinary Immortal Venerables for a period of time. Just for this primary form of Immortal Array, Jing Yan spent materials worth several hundred billion Black Crystal Stones.
These days, Jing Yan's expenditure has indeed been astonishingly high. Roughly estimated, it amounts to nearly two trillion Black Crystal Stones.
And this is merely the beginning.
