Can't Stop It

Sister Orb then explained. [The real use of this formation is to gather the living souls of everyone and use its converted energy to attack. Our army doesn't need to worry about having their souls extracted since they can defend against it with their Divine Energies. However, the Demon Beasts Gardo mentioned...]

Rean immediately understood. 'They have no defense and will die straight away, right?'

[Wrong,] Sister Orb then corrected Rean, [there is no defense to talk about since there are no more Demon Beasts here. The formation is already fully charged. I can't tell what happened to the demon beasts inside since it is not like I can see things. However, considering all the energy, I'm pretty sure not a single demon beast survived.]

Rean was taken aback. 'Then why haven't they used the energy yet?'