How to Complete Bonga Bugle - Plumfrost
At the interview with the Head Editor, say "You'll be Owner next!" Then go to the location that the Head Editor tells you to go to (it's random).
At the location, you have to protect the Head Editor and the Owner, and defeat all foes. Summoning Scions is forbidden. To summon Scions, you need to equip specific items. These items will list an Action ability, but with no job name alongside it. If you don't have any items like these, there is no danger of breaking the law.
The Editor and Owner are very weak, so be sure to protect them well. Otherwise, if either one gets KOed, you fail the quest.