The diplomacy squad that planned to be sent to make contact with the Unified Bastioni of Humanity consisted of three individuals: Yuushia, the secret puppet of Nagan, controlled and acted fully by him. She will be the leader of this group, the spokesman, and the individual who makes all of the decisions. There were no suspicions made by the majority of the kingdom residents, considering her believed prowess and made-up background and experience.
Not to mention, in the eyes of the usalians and nezuras, Yuushia was probably one of the three individuals in the kingdom that are capable of creating a portal apparition, with the other two being the Patriarch and the Queen.
"Elder Yuushia! I made this lucky charm for you!" shouted one of the new gen usalian, reaching out a pendant with a crystal-clear red gem adorned by a wreath-patterned frame.