Hien wishes to speak to Magnai and Sadu before you continue on to Yanxia.
Requirements
This quest is available if you have completed the quest Glory to the Khagan.
Starting the Quest
Talk to Hien in the Azim Steppe to begin the quest. There will be a cutscene.
Speak with Magnai
You can teleport to the Dawn Throne if you have attuned to it. If not, go outside and go southwest to where the orange arrow is pointing in the minimap. Go into the building and talk to Magnai. There will be a cutscene.
Speak with Sadu
Go outside and go southwest to where the orange arrow is pointing in the minimap. Talk to Sadu and there will be a cutscene.
Speak with Cirina
Go southeast to where the orange arrow is pointing in the minimap and talk to Cirina. There will be a cutscene. You will receive a Mol Banner, which you can place on a wall in an apartment or house, if you have one.
Next Main Scenario Quest
After you complete the quest, talk to Hien to accept the next quest: The Hour of Reckoning.