Zen Daijun

is it possible for prophecy characters to do the zen daijun mission? if so what do i need to do to get there?

Yes, you need to go to the island, grab the henchies, and then run around as you will not get quests to goto specific locations. You can just walk into Ran Misu and Zen Daijun mission outposts, form a group and go from there. If you find a closed gate, talk to the guard that may or may not be there, he might let you in, but not if you have factions players in your group or atleast they won't be pulled in with you.