I saw that some people have troubles with Locale Emulator, so I converted the character set from Shift_JIS to UTF-8. So the game should work without the Locale Emulator, I tested it.
The only problem is that the text formatting is messed up, so it's not as pleasant to read, but nothing serious. Who wants can edit the file "scenario.ks", since I don't want to waste more time on this than I already had. Lessons learned next project with KiriKiri will be without locale emulator.
Installation: Extract the file in the game folder and "Replace All".