Asahi's life in reality ended simultaneously, when she died playing "Union", a world-renowned online RPG. The members of "Subaru" went separate ways when "Union" shut down due to Asahi's death. Six years later, Haruto logs onto a renewed version of "Re'Union" and reunites with Asahi who had died. Is she an electronic ghost? The "promise" the childhood friends made will unfold within the game.
Shichisei no Subaru (Light Novel)