The official Japanese Fate/Samurai Remnant Twitter account shared a trailer for the early purchase costume that you can get for Miyamoto Musashi. Though she is a Japanese Servant, the outfit is based on traditional Chinese garb. Koei Tecmo encouraged pre-ordering the game to make sure that you can get it if you want it.
If you’re purchasing a physical version of Fate/Samurai Remnant, then the Miyamoto Musashi costume is only available in copies from the initial production in Japan. Digital players who get the PS4, PS5, and Nintendo Switch versions will get the costume if they buy the game before October 11, 2023. Meanwhile, Steam players will have until October 12, 2023. However, Koei Tecmo stated that there is the possibility that this skin will become available again as DLC.
Here is a trailer of the Fate/Samurai Remnant Miyamoto Musashi costume:
早期購入特典「幻想霊衣：宮本武蔵」を映像で紹介。
可憐なチャイナ風衣装を纏った
宮本武蔵の姿をご覧ください。確実に手に入れたい方はご予約をお早めに！
詳細はコチラ▼https://t.co/76g5tcotXu#FateSR pic.twitter.com/wyi2Z0o3sO
— 【公式】Fate/Samurai Remnant (@FateSR_Official) July 14, 2023
The costume changes her 3D model, which is reflected in cutscenes and in battle. However, it does not affect the art that appears in the speech bubble. Aside from Musashi, you can get a special costume for Iori if you purchase the game from Amazon JP, or a costume for Saber if you get it from Geo.
Fate/Samurai Remnant will come out on the PS4, PS5, Windows PC, and Nintendo Switch on September 29, 2023.
