After three hours of fighting on the wall, Theo realized the decrease in their number. Due to their wall advantage, humans managed to minimize their casualties while continuously raining the monsters with their skills.
Theo also had been fighting nonstop while maintaining his Magic Power usage, resulting in him leveling up several times.
He didn't use his Magic Bullet recklessly and waited for a minute before sending another one because he didn't want to exhaust his Magic Power so soon since the Magic Bullet required more and more Magic Power each usage if he used it continuously. It was the drawback of his Magic Bullet after all.
…
Suddenly, they heard someone's voice from the speaker that was installed inside the wall.