"Haaa!" Howard swung his sword against his opponent, who happened to be using one as well.
Clink!
Their swords clashed together with their spiritual energy.
The demonic human overpowered Howard with his spiritual energy, but to his surprise, Howard didn't even flinch.
He remained still as if his strength was stronger than his spiritual energy.
In the end, Howard's strength was boosted by the advanced rune, allowing him to fight someone at a higher level than him.
It was true that using this rune would require a lot of demon crystals, but if they could boost a hundred people at the same time as Howard, they could basically conquer the enemy.
"Haaa!" Howard roared as he used every bit of his strength and gradually pushed back the enemy.
The demonic human jumped away before releasing a crescent-shaped sword strike.
