Watch Online Free on Watchseries. Edelstein was a solo concert by Roselia. It was held on December 11 and 12, 2021 at the Nagoya Congress Center Century Hall, and was also livebroadcasted in select movie theaters in Japan, South Korea, Hong Kong and Taiwan.[1] The second day was opened by Itou Masahiro and Hyuuga Daisuke from Argonavis.[2]