Of course when Azief become a slave in the past, when he was hauled up in one of the Seresian space vessel a she was transported from the slave world to the Seresian main world he saw the elves that was in the same predicament as his.
But unlike the native of the slave world he was not as shocked.
After all, he had seen weirder shit. Elves is basically par for the course.
But while he was not shocked, the native people that was transported along with him at that time is very shocked to know that there is another race other than humans.
It is the same shock that he could see when the humans that Katarina have brought found out that there is a race called the Elves