XANVALA uploaded the MV of the song "誰が為の幸福論" (Dare ga tame no koufukuron) that has been filmed on stage.
The song was released in their single "文明開花" (Bunmei kaika) on April 28th, 2020 (details), but also in their best of album "陸重奏" (Rikujuusou) released on July 8th, 2020 (details).