INNOVATION was released on December 1, 2010, as the comeback album of Japanese duo Pink Lady. Released as a 2-CD set, the album features re-recorded versions of single releases, b-sides and well known

"Tōmei Ningen" 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.