This documentary follows the path of musician Kazuhiko Kato, who has created many masterpieces that remain in the history of Japanese pop music. Kazuhiko Kato, affectionately known as "Tonovan," influenced many people with his musicality that was ahead of its time, such as "The Folk Crusaders" and "Sadistic Mika Band." The documentary introduces the behind-the-scenes story of the formation of The Folk Crusaders, who created Japan's first million-selling hit, rare footage of the Sadistic Mika Band's overseas performances and recording scenes as they made their way around the world, and hidden anecdotes about the "Europe Trilogy," which is said to be a monumental work of Japanese pop music. In addition, a new recording of the timeless classic "Ano Subarashii Ai wo Mouichido" is made, and the song's evolution by musicians of various genres is shown. The film was planned, directed, and produced by Yumi Aihara, who also worked on "SUKITA: A Moment Carved by Artists."