If we reconstruct from available CauseCurse audio dramas (e.g., Curse of the Evil God series):
CauseCurse -Jashin no Chigiri- (RJ01315626) is a dark, psychological romance visual novel from FreakilyCharming featuring a yandere monster-girl entity and a coerced, obsessive living arrangement. The narrative focuses on the protagonist's survival and psychological adjustment to living with the "Jashin" as it blurs the lines between fear, affection, and codependency. For more information, visit The Visual Novel Database CauseCurse -Jashin no Chigiri- | vndb causecurse jashin no chigiri rj01315626 link
The base game is in Japanese. If you are looking for an English version, check for fan translation patches or official localizations on platforms like Steam or JAST USA, though many niche RJ-code titles remain Japanese-only. If we reconstruct from available CauseCurse audio dramas (e