Common solution is to simply manually copy the contents of the setup folders and paste it to the game directory.I try to run the update.exe, but it says It can't find this file. Can I ask for help?
But if you really want to run update.exe for whatever reason, what I did was run it in Japanese with Locale Remulator, which changed the name of the missing file in the error popup to its supposed japanese name. Opened setup1 folder, followed the directory shown in the popup (DefaultData\0\coordinate\female\), and renamed the 3 clothing set .png files to the name shown in the popup.
サイバーパンクセット = Cyberpunk Set
マミーウルフセット = Mummy Wolf Set
小悪魔セット = Little Devil Set