"Please explain it in detail." For starters, I had to hear the story of what was going on. 

***

Guardian was the transcendental magic ability of the Great Wizard. Moreover, it was an infrastructure long put in place and was based on that magic ability. It was one of the two Commandment Bodies created with the addition of the Primordial God's blessing. Their objective of creating it was simple; the protection of mankind, as well as the separation of the surface world and the parallel world.

"What kind of separation is necessary when the surface world is out of the forces of the parallel world’s league?" I thought this fact was obvious, especially upon seeing just one of Lee Family's forces ignore the Third-Generation Chaebol and refer to them as merchants when ordering their henchmen around.

However, Aegis, the oldest guardian born in the nineties (Year 1890, not the Year 1990), shook his head. "But even so, little is known about the parallel world."

"Isn't it best to keep it a secret?"

"That's right. As long as we adhere to that line, the surface world would be peaceful and mankind would be able to prosper."

Aegis explained that the Great Wizard, the only transcendent of Earth and the world's greatest prophet, decided to separate the two worlds after foreboding what would happen if both worlds integrated. "According to him, he said that the war would repeatedly occur. Although it definitely wouldn’t result in the destruction of mankind,...