Aaron returned to his house after a while at the meet and greet.
He was wrong about the forgotten fame. Someone did recognize him, but the supposed commotion didn't occur.
While he was speaking with Erika, the girl beside her recognized him and pointed out to Erika who he was. There was a bit of surprise, and they asked a couple of questions about how he was able to achieve that.
Aaron with no way out, said that he used all his skill points earned before the exam on upgrading his [Summon Skeleton] skill, which improved the number of skeletons he pocessed.
With such a large number of fighters, he was able to achieve the top rank.
Aaron skipped the details that could land him in trouble, but the look on Erika said that she saw through. She indeed did. She is not a stupid girl to believe that he could achieve with a bunch of skeletons.