In order to upload a custom model & animation the model has to be in .FBX format - with the animation baked into the model.

Once that's completed all you have to do is place your model's .FBX with the texture files inside of a .ZIP and that's it! You can upload the finished .zip into Waifu for Laifu and enjoy your custom animation & model.

There are many ways to bake the animations into your model and upload it into the game seamlessly and today I'll be walking you through an example using an MMD model created by Sachi & VMD motion animation into Waifu for Laifu!

For this example I'll be using:
Blender and the plugins

• CATS for blender
  
• mmd_tools for blender

Open Blender and import your PMX model

Click on the CATS tab in blender and click on the "Translate all" under the model options tab in order to translate the bones names to english

Click on File -> import -> and import your .VMD animation file

Click play in order to make sure the animation file you imported works well

Click on the button marked in the screenshot in order to jump back to they first animation key frame.

Click the spacebar and search for "bake physics" -> Click Bake All Physics

• Export the model as an .FBX file to the same folder the .PMX file was located in.
  
• While selecting the folder make sure that "Bake Animation" is ticked on (it should be on by default)

Create a new, empty project in Blender

Import the .FBX file you exported in <Step 7>
(The model will look strange, it's okay)

Click on the CATS tab -> Fix Model

Export the model as an .FBX file to the same folder as before

The textures will not load if they are in a sub-folder so make sure the textures and the newly made .FBX file are in the same folder.

Select all textures and the new .FBX file we made -> Right click -> Add to archive in order to .zip them up! .rar will not load so the textures and the custom model need to be in the same zip.

In the ingame menu select "Custom Lap Dance" - the ability to upload the custom model will be visible only in the desktop window -> Load your model in the game, upload your own .mp3 song and enjoy!