Morning Musume.'s Ishikawa Rika's Graduation Concert held at Nippon Budokan.  Morning Musume. is a Japanese idol girl group part of Hello! Project, produced by Tsunku. "Dai 6 Kan Hit Mankai!" features a concert from their 2005 spring tour. It was filmed May 7 at Nippon Budokan and was also the graduation concert for 4th generation member Ishikawa Rika.

Morning Musume. 2005 Spring ~Dai 6 Kan Hit Mankai!~

The year is 2027. In modern day Tokyo, people can freely enjoy use of the internet as a result of the widespread availability of the Ethernet across the world. In all aspects, this is considered a modern communication revolution.  The revolutionary cloud operating system, known as ESC-A, has spread wildly among Japan's youth along with the internet. The video game software that comes preinstalled on the OS is Phantasy Star Online 2.