Who invented it?
How long can our Trusts be around?
Can they do anything besides fight?
Can they hold true, intimate human conversation like their real counterparts?
Can you walk around town gossiping about how Mumor is best girl and not Uka?
What's stopping everyone in Jeuno summoning the same Trusts and having a Ru'Lude Party Block Bash with 1,069 Mumors?
Can I party with Trust Mumor and the real Mumor when she comes for the summer festival?
How can a passerby tell which one is Trust Mumor and who is the real Mumor just by looks alone?
Can I use Mumor to run errands for me like some advanced human robot akin to Google's phone assistant complete with "Umms..."?
Are trusts tangible? Can I bang a Mumor in the alley behind the Marble Bridge? Will Trust Mumor have the same reaction as the real Mumor?
So many questions.