Hey, provided relationships are a crucial part of the game, but since they can involve external elements as well, would you deem OSIS playable with 1 player / 1 GM? I generally feel FitD games one2one friendly but I wanted to hear your opinion!
Mechanically I wouldn't be sure, but I don't see why not if you can make it work! Your Bonds would simply be made with GM-controlled characters instead.