The demon that attacked the frontline base looked like a huge reptile with thorns on its back. It was acting strangely, changing the color of its body from moment to moment and rolling its eyes from side to side.

"What kind of demon is this?" William, who had been with the crown prince, was the first to respond to the attack of the demon. He quickly froze the demon's legs to stop it from moving.

It was a rational and legitimate judgment. Ordinary animals’ mobility was dependent on their legs. However, although it made sense, it wasn’t an accurate judgment. The demon opened its mouth, and a faint force immediately emerged and hit William.

Boom! 

"Gasp!"

The blow, which wasn’t just a physical force but also contained dark mana, blew William away with a roar and destroyed the surroundings..

"Keuuuu!"

William protected himself with the skill of a seasoned medusa. However, he couldn’t completely block the blow, because his mana was dispersed to reduce the explosion’s range to prevent damage to the surroundings. Still, thanks to his effort, he was successful at protecting the area from the explosion.

"Emergency call!" William exclaimed, using a signaling spell of the Butterfly tribe to send a beacon high into the sky. When the nearest Butterfly tribe member felt the signal, they would repeat it in all directions, attracting all the forces of the Butterfly tribe.

"Damn. Where did that monster come from!?" William exclaimed.

Although the signal...