Zhang Tie was not nervous. Although he was in the face mask, this face mask could be easily identified by powerhouses who excelled at disguising skills; however, Zhang Tie was not afraid of being identified.
Right in front of him, the two black iron knights who had just entered the Black Armor Battlefortress were also wearing face masks.
Given their steel-blue hair and brown skin, Zhang Tie knew that the two knights in front of him came from a foreign subcontinent. Their face masks must be the deity that they worshiped.
There were many similar human knights in the Lion Fortress and the Earth-elements Realm who were in different human races from different countries on different continents with various beliefs.