Oh, so the "joace" in post #2087662 really was "play". Mystery person made a toy for Flandre.
Calm down.When that monster popped, this was found in its remains."Happy birthday, Flan!"Don't show that to Flan.What was written inside!?Well done, Alice. I think that's the correct assumption.A letter...?Patche...do whatever you want with it.I told this to Remi.