In the MMORPG realm of 'Union,' a renowned party known as Subaru, comprised of childhood friends and youngsters, pushed the game's boundaries with their extraordinary abilities. Tragedy struck when a life was lost, leading to 'Union's' closure and the dispersal of the once-united friends. Fast forward six years, high schooler Haruto ventures into the newly launched 'Reunion' only to encounter Asahi, a former member of Subaru believed to have perished years ago. Is she a spectral presence from the digital past, or something else entirely?