"Evolve to Grand-grade at any time?" Once the four heard that, they could not help but look at each other, inwardly laughing at the absurdity of Aurus's statement. However, Herellia and Horell, who had been listening in on the conversation all this time, remained silent. After all, the two of them had seen the absurd leveling speed of actual Aurus from back then, so it was no surprise that this ability would be carried over into the Aurus in front of them. In fact, Herellia was so certain that Aurus could truly pull it off thanks to the system he had with him.
In any case, none of the four truly laughed at Aurus's words, thinking that it was just some sort of hyperbole in order for them to not lose hope in him. To them, even if it took a few months for him to reach Grand-grade, it wouldn't matter much. That's how much belief they had in his words… basically none.