TIL that pressing Q on difficulty select screens resets your save. At least in Locus it does. I was in the middle of stage 3, so it's not that big a loss, but still pretty frustrating.
Now I am really sad. Suggestions? (click to show/hide)I saved inside the wall near the end of Marchen
Like I said in the thread, pressing X gets you unstuck.
i punched my laptop while grinding k3 emperor miku and lost my save after it broke i had already beaten piano and colonel too