1586, Kyushu - The Satsuma-Shimazu family, which was said to be the most feared in the Sengoku period, disappeared during the Kyushu Unification War...!? They were transferred to Kyushu about 1,300 years ago during the Sengoku period, when the survival of the empire was at stake. It was Rome in the 3rd century, in the midst of the Warring States era. The Sengoku spectacle, in which Oni Shimazu and his friends go on a rampage in Rome, begins.