"Tōmei Ningen" (透明人間, lit. "Invisible Person") is Pink Lady's ninth single release, and their eighth number-one hit on the Oricon charts. The single sold 1,150,000 copies, and spent four weeks at number one. According to Oricon, this was the sixth best selling single from 1978. A re-recorded version of the song was included on the 2-disc greatest hits release, INNOVATION, released in December 2010. The B-side was the theme song for the TBS puppet show Tobe! Son Goku (飛べ!孫悟空, lit. Fly! Son Goku).