>>282907426
The word for cult here was 教団 (Kyōdan). This seems to mean religious organization, but I see it translated as cult as well. The modern term that Nanoka used that Otoya was unfamiliar with was 土地乗っ取り (Tochi nottori) which seems to mean "land grab" or "land takeover" or "claim jumping". I think hostile takeover is a good localization.