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Touhou Galaxy Project Revision, also known as Reisen continuity "Reisen", Third continuity or by it's universe as "Reisen Naka" which term "Reisen" was introduce in 2024 short story, Goodbye Rinne. Prior before 2024, this continuity is known as Touhou Galaxy Project old canon or Blanec continuity "Blanec", simply known as TGP OG canon or OG canon or by it's universe as "Negative One" for short is the story or material that considered to be first continuity of Hyperdimension Neptunia: Touhou Galaxy Project series prior before Kotori continuity. Any media that release in from start of the series to November 20, 2016, or under Reisen Naka series, is consider to be part of this continuity.There is only 1 media in this continuity is "Blanec’s Lowee Empire". The remake version was part of Reisen Naka series.
After Goodbye Rinne debut, this continuity along with other two were merged together. This continuity is the third continuity of Touhou Galaxy Project.
To not confuse with multiple article which one is Blanec continuity. See Blanec letter on the top right of the page.