Innate Ability?

Grey never expected that Ellis' father would send something like this to him, so he was pleasantly surprised. Of course, he was a little embarrassed that he had to cause small trouble for the O'Brien Family, but it wasn't really a big problem. 

After some time, he couldn't help but think that other than making his physique stronger at that time, he didn't really get anything much from it. 

Originally, he couldn't be bothered with it, but now that Ellis' father brought something to help with it, of course he would see if he could add it to his strength. At the moment, he wanted to grow stronger. 

If this would help, then he would definitely use it without a second thought. 

"Well, the only issue is that it might cause a clash between you and the Vaergahl Family. They would sense the Dragon blood in your body, so it would be best if you restrain it whenever you're in their presence." Ellis said, with an embarrassed smile.