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.
Status: Finished Airing
Aired: Apr 7, 2016 to Sep 29, 2016
Producers: Sotsu, Pony Canyon, Infinite, Ponycan USA
Duration: 24 min. per ep.
Rating: R - 17+ (violence & profanity)