Hi there as the shader is based on Light Shader V1.4, it also has the same bug that affects the performance so I don’t recommend purchasing it.
For the Exampls, you can checkout my Discord server for the Shaders Channel, there I shared some unlisted youtube videos of the shader in action.
It seems you are more into Visual novels and other things, there is already an easy-to-use Visual Novels plugin that you can use to easily create a good storyline along with the dialogue conversations and choices. You can check that out.