The term "Shinwa Taizen" is not original. It originally appeared as part of the "Secrets of Japan" for the role playing game "Call of Cthulhu" by Chaosium.
Although the term and some of the concepts regarding the Shinwa Taizen have been shamelessly lifted from Chaosium's supplement, they are being used for personal purposes only (as part of a campaign of Mage: the Awakening). This should not be regarded as a challenge to Chaosium's copyright.
