I'm almost done Last Mission but I saw there was a trophy I can get around the area where I am. I'm on floor 57 right now and apparently if I keep using Find Secret Room folios until I get a certain room, save, and then repeat two more times I can get the trophy (Tonberry Treasure). Sounds pretty easy. The only thing is, Last Mission doesn't even seem like it exists on the internet. There are no guides, no videos, nothing to help me figure out how to get this item. There is one video on Youtube but the guy somehow already had like 5 Find Secret Room folios when he got to floor 61, which is where I need to use the first one. Where is this item? Is it simply found or does any enemy drop it and on what floor can I find it?