Buddha Saitan

Adaptation of a book by Happy Science founder Ookawa Ryuuhou. The book and it's film adaptation revolve around the prediction that Buddha will return “when the world sinks into darkness.”

Sponsored by religious organization Happy Science (Koufuku no Kagaku).

More of the religious-inspired Buddhist-cult story-telling from those special people with the ↗Happy Science organization.

Also see their earlier recruitment anime movies - Eien No Hou and Rebirth of Buddha.