“Why? Don't you believe me?” Hyeonu asked Erwan again.

“It is something that anyone would find hard to believe,” Erwan replied with a slightly aggrieved expression. The outward emotion was only a fraction of what Erwan felt. Common sense told him that humans invading the demon world was hard to accept. Invading someone was only done when one had built up overwhelming power or had confidence in victory.

War consumed enormous resources. The resources included not only material resources, but also human resources. It was over every time a person died. The dead couldn’t come back to life. Due to this one absolute truth, the Luos Empire was aware of the existence of the demon world and divine world but couldn’t take any action. The empire wasn’t confident to win a war against them while risking the penalties given by the unique environment of the divine and demon worlds.

‘Then how...? They invaded the demon world?’

Several hypotheses were created in Erwan's mind. Either the power of the empire of this era was enormous or they had found a way to adapt to the environment of the demon world. Otherwise,...