In today's episode of "ok but who the fuck asked" I would like to mention that this is the H-game I would like to see get a SFW-version/general audience release the most, because this game is actually a competent albeit short and basic action platformer with very good sprite art and a genuinely chilling "lovecraftian" kind of atmosphere that would probably appeal to fans of games like Bloodborne.

Unfortunately it's also impossible to actually recommend this game to normal, functioning human beings (unlike myself) because Sinisistar is also a ryona hentai game, and good god some of these scenes are BROOTAL and there's no option to switch them off.

Update: Seems like we got what I was asking for with a SFW-version of the game:
https://store.steampowered.com/app/1794780/SiNiSistar_Lite_Version/