Bringing back to the game costumes which are not available at the store anymore.
You can now use them in TMC format with AutoLink.

For more information:
https://www.deviantart.com/ayanekun...-Back-DOA5-LR-Missing-DLC-Costumes-1236652716

REQUIRES: AutoLink 3.30 installed in your game directory

These costumes will only work for you if you got Mai Shiranui character DLC.
Unfortunately, it's not possible to add the character with AutoLink, or any other method which I'm aware of.

Place the files for Mai Shiranui costumes inside your ...\Dead or Alive 5 Last Round\Autolink\Mai\##\ folder, where ## stands for the number of the outfit slot you want to add these outfits.
They can be also be split and placed in different outfit slots, if you want.
In the fighter selection screen just press directional to the right, after selecting the outfit slot which contais the mod.