Du You smiled wryly. By comparison, Earth was an invader just like the Other World, only with different methods. Earth's will aimed to annihilate the will of the Other World, stirring up the strongest resistance from the Other World.
But in the eyes of the native creatures, Earth's approach was the mildest, with no intention of slaughter.
They only needed to devour the world will of the other side, not caring about anything else. The natives could still survive. Even after complete assimilation, they had the chance to become new Professionals.
The Dark Clan, however, wished to transform all living beings of the entire world into their own, either as puppets or as members of their own race, thereby influencing the world will through such methods.