I've already lost interest. Unless there's something to be gained from this besides the adornment.
I probably should have kept this to myself to avoid this 'begging/you're trolling" back'n'forth until I figured this out 100%, and for that I apologize (I get giddy when I discover new stuff >_>). I'm likely going to make a new thread explaining the method at the same time I update the Monster Infusion FAQ to its final version. I've been able to reproduce the method 12 out of 17 times, so I'm missing something still. Once I know exactly why it works when it does and doesn't when it doesn't, I will post the method immediately.
What I can tell you: This 'method' will allow you to view all cutscenes which play during your first run of the game (the ones that magically -don't play- during closed-gate replays. It resets everything 100%, including the Arch Steppe events and Live Trigger.
It isn't a huge thing, but it might be nice for people who wish to enjoy the full story again, legitimately.