PRISM original member Ken Watanabe, 20 years since his solo start in 2001! Fully released a solo album! Self-recording, where I worked on the entire recording process from bass, vocals, programming to recording, and mixing. The four representative songs by Watanabe during the PRISM era have also been renewed with new expressions. A collaboration work with photographer Naoko Ishibashi. The booklet is a photobook specification that uses plenty of "photographs that blend in with the time when light and shadow drift". Music develops a story in the flow of time, and photographs express the story in a scene created by the moment when the flow of time stops. It is a work that expands the world that transcends the passage of time when you let your free thoughts swim in seemingly contradictory expressions.