P.A. Works, the anime studio headquartered in Nanto City, Toyama Prefecture, opened a website to announce its 15th anniversary anime, Kuromukuro. The studio behind True Tears, Angel Beats!, Shirobako, and Charlotte is collaborating on the original project with Tensai Okamura, the director known for Medabots, Blue Exorcist, The Seven Deadly Sins, and other anime. The website states that the anime will "barge in, in 2016."

During the construction of the Kurobe Dam, an ancient artifact was discovered, and so the United Nations Kurobe Research Institute was established. Intellectuals from all over the world gathered to study the object, and the children of those researchers attend Mt. Tate International Senior High School, including the institute head's daughter, Yukina Shirahane. In the summer of 2016, a lone samurai once again awakens.