Found a Sacred Stones save file a couple days back with Super Trainees unlocked. Started playing the game earlier today. The mission: get through all of Normal Mode using literally every character (potentially barring prepromotes), always choosing the units at the lowest level, and not promoting anybody ever. Only about four chapters in, but I got Ross to ten and he's become a Super Journeyman! Working on leveling some of the others that popped up recently, like Lute, Vanessa, Colm. So far not a single unit is above level four~
I would have gone with Hard Mode, but it's been a long time since I played this game so I don't remember much. I also haven't played Fire Emblem in general in a while. That aside, while it's easy enough so far, I expect not promoting anybody to make the game more and more challenging as I go. Plus, always using the weakest people... yeah. Don't know if I intend to post any updates as I go, since I dun think anybody'd be too interested, but! Might at least post when or if I actually finish the run. And who knows, maybe I'll try Hard Mode once that's done...