Coming from Twitter (links to archives with content were found there). Chapter 1 to 13. Other things that could have been related (and that I have, but didn't upload):
-content of archive called "part 4", containing an Ex chapter, more in the spirit of chapter 12, showing background events
-content of an archive containing chapters 14,15, about christmas/christmas eve events involving the first 2 heroines.The archive also contained a text document, that may link this universe to others of the author.This is in various ways separated from main content, though having the 14 and 15 chapter numbering.
-2 others works by same author, "初夢~戌~" and "催眠女子寮『キサラギ』". Possibly featured in the aforementioned text document.
Wonder if someone would make english subtitles for the game. That would be a massive undertaking though. But I know there is a translation for the cutscenes on hypnohub
@Supeskupes, it's not a game, it's just captures from CM3D, which coincidentally can be used to make VNs. The author uses the program's VN mode and make captures to create a comic strip, that above is the end result, there's no game, though there's 2 other RPG game he/she made using RPG maker, one shares the same universe with this series which is also quite interesting.