Eric had no intention of appearing at the auction with his real face, so he made sure to use his Blood Clone technique to alter his appearance, and even bought a mask from the Legacy System.
The Mask was called 10-Transformations, and it could provide him with 10 different faces and appearances to fool the eyes of the people around him.
It cost a whopping 1.000 SP points, and it was useful only to deceive the eyes of the people under the 6th Realm.
As for the people of the 6th Realm and above they would be able to see a blurry image of what was hidden underneath the mask, or his full image, depending on their senses and abilities.
But Eric didn't care much about this, as the mask on his face was nothing more than a smokescreen to cheat those big guys at the auction.
After all, if he went with an open identity all kinds of vermin and people would try to find his identity and attack him.