Step 1. Get a front facing drawing of escanor (preferably a custom one that's high quality tbh)
2. Make it live2d ready
3. Rig it in live2d
4. Make texture atlas and export
5. Put in the correct facerig folder (in the documentation for live2d facerig avatars)

You're done!

I noticed this is actually in the 3D section, that may be harder. You'd prolly wanna first find some premade model for sale, like one made for vrchat. Then you'd have to check its rigging and weight painting and animations and make sure it fits the documentation. Youd need to export it as the documentation requires