Chapter 1884: Unlocking Sevenfold Mana Core P1

In the dimly lit underground facility of Siren's Sanctuary, multiple stone platforms stood in organized rows, each etched with intricate runic details.

These platforms served as the operational stage for Eren's experiments. Using the fiends' help, Eren arranged for every prisoner to lay flat on the platforms before shackling their limbs to it using the runic details.

"Here goes nothing."

With a swift gesture, Eren activated the Array Formation, the runic symbols on the platforms glowing with a faint light.

"Ugh!" Ugh!" The gagged prisoners tried to register their protests. However, they were forced to lay on the stone platform by Ashton and Hilda.