This shader is optimized for RPG Developer Bakin standard character models and may not be suitable for character models you have created yourself.
You can change the facial expression of a character by applying the dedicated shader [character_create_skin] to the character model.
To use the model, you must have a model that meets the following requirements
You can change facial expressions during events by going to "Events > Conversation > Change Map Cast Expression".
Please refer to the 3D Tutorial game file, which contains the actual specified models.