3) I checked the file "149_main_script.ks" and at the end of file, for some reason it has this line "[playse storage=.mp3 loop=false clear=true]" which cause the script to fail. I guess this a bug from DMM. Anyway, I've updated the script to bypass this problem.
4) Download the six.zip file and extract to "Kamihime_Player-1.0-pc\Python27\lib\site-packages" should solve your problem.
If you encounter another problem with python import, then download this whole Python folder (https://drive.google.com/open?id=1ZG...6xXDAjvnn_Mxk8) and extract to "Kamihime_Player-1.0-pc" folder.