Rosalie introduced Amilia to Elena and Azusa and just as they had expected, she was the friend that Rosalie was talking about. Amilia was actually a high ranking treasure hunter working for a high grade organisation called the "Treasure Hoarders". Currently she was retired.
This organisation was just one level below the top notch ones like the Truth Guild or the Chaos Order. It had at least one level 9000 plus powerhouse or more than 30 level 8000 plus powerhouses in it.
She had met Rosalie in an ancient ruined world where both of them went to search for treasures. There they had become close friends as both of them were females and were interested in bodily pleasures.
Rosalie was also a level 6000 plus powerhouse but currently she had lost all motivation to become any stronger. So the level of 7000 was a distant dream to her now.
