Kyokon densetsu: Utsukushiki nazo

Shinohara, a young bodybuilder, joins a para-military sect in northern Japan. His instructor, Takizawa, takes a liking to the new recruit. After an early special training session the two develop a lasting and loving relationship. Beautiful Mystery was the first gay adult film to come out of Japan. Although tame by U.S. standards, it is groundbreaking nonetheless.