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There was a parallel universe called, Gamindustri. A long time ago, in Gamindustri, a big incident took place. But the conspiracy of the four continent's hard driven goddesses, crushed it and brought peace. This is the story of what happened after the goddesses resolved the incident.
The year is 2205. The "historical revisionists" have begun attacks on the past in their plot to change history. The Saniwa, who have been charged with protecting history, can imbue life into objects. Strongest among these are the Touken Danshi. The story centers around their cheerful lives.