Lofty’s decided that all of Evan’s friends need new outfits to match their newfound status, and Grimm needs some items to make Roland’s outfit. The first item is five Rook’s Brocades, which can be gotten from the Wondrous and Bountiful Bazaars in Evermore. The second item he needs will be three Snazzy Strings, which you can obtain from the same facilities as the Rook’s Brocades above. For the final item, you will need two Moonrise Threads, which aren’t as easy to get. To acquire these, you will need to visit Faraway Forest Maze, which is located on the island east of Broadleaf and requires you to finish Sidequest 002.

Once that is out of the way, enter the Dreamer’s Door knowing that it is 30 floors in total and your best chance to get the threads is from the sparkles on floors 21 and above. Note that it is completely random, so there is no guaranteed chance you’ll get them on your first visit. Unfortunately, the “rare materials” option in your Tactic Tweaker doesn’t help with sparkles, since it only affects battles. This brings up a second option to complement the first, which is to let the Danger Level reach five and kill monsters, hoping they drop the items. If you do this method, then the Tactic Tweaker mentioned above will work. Once you have the thread, hand them over to Grimm to finish the quest.