The fourth album surprised everyone. It's different from "Fanclub" (ファンクラブ) and the previous albums, "World World World" (ワールド ワールド ワールド) has been written around a specific theme, every song has a link with space, time and travel. Also, the tracklist order is made in a way we start from Earth and gradually end up into space. Masafumi Gotoh, through his songs, become an engaged artist against violence, idiocy and injustice. The song "N°9" is refering to Article 9 of Japanese constitution, stating Japan will forever give up on making war as souvereign right of the nation or using violence for international conflicts.