Weakness Light

On the other hand, the abyssal creatures at the third defensive line could not advance anymore because the main forces at that location were stopped by the fighters from Shrek Academy. They had all been killed by the infrasonic aircraft's strikes, and the third defensive line had been stabilized. With the aerial forces escorting them, the infrasonic aircraft were wiping out the scattered abyssal creatures that managed to cross the second defensive line. Then, the aircraft worked their way inward. 

The Spirit Monarch slapped at the air. The gesture caused violent tremors and detonated elemental energy that Gu Yuena had launched at him. 

Gu Yuena could clearly see a sudden flicker in the Spirit Monarch's eyes. It was a blood-red light. His incredible spiritual power had been released for a moment before he quickly retracted it. 

'What is he doing?'