That instruction makes no sense. It jumps steps or something because I never get that option. Not worth the energy to read this thread. I have thousands of games offering more with 0 hassle.
Japanese indie games/mid budget japan only PC visual novel are known to be heavily region locked,
they were meant to be created by obscure small non english speaking Devs for a really obscure groups of Japanese audience that also do not speak English.
this visual novel game engine itself is a really old japan only program.
on your PC wins7 or 8 or 10, hit "start"---->go to control panel & then region or language settings depends on your OS,
,
in region setting change the local to Japanese
[some japanese games will require changing the format as well for the fonts to work].
---->restart when asked & then run the 4H11 exe & enjoy.
if you're unsure, then check this in depth guide on how to run any Japanese games on your OS.
https://f95zone.to/threads/how-to-run-japanese-games-on-windows.1040/