In the secret realm of the cave.

In a huge formation array filled with colorful light and surging spiritual energy, four beautiful women with different temperaments sat together, holding their breath and concentrating. They continuously manipulated their spiritual techniques, jointly refining a plain cloud silk formation flag standing in the middle.

Countless faint golden runes permeated the surroundings of the formation array. As the tide of spiritual power surged, the density of the runes derived from it became increasingly intense. The mountains, rivers, and clouds on the surface of the formation flag became brighter, and a powerful pressure gradually rose.

"...Phew, it's finally done!"