The Three Kingdoms

Requirements
'Mission 2-1 completed 'Rank Bar filled to the point the gate guard will offer "The Three Kingdoms". You may need to donate crystals or repeat earlier missions in order for this to occur.

Starting this mission
As soon as you accept this mission, the gate guard will send you to Heavens Tower. Go inside the office and talk to the tarutaru behind the counter. He will tell you about the other two nations and hand you a key item. You can do the 2 nations in any order.

San d'Oria, Bastok
Upon talking to the embassy in Northern San d'Oria you are sent to the castle. Talk to Halver and he will request you to head to Ghelsba Outpost.