In the far future, a strange thing had happened. A total of one hundred people have been locked up in a mysterious city, ranked like animals and left to fight each other to the death. The top of these 100 is titled the 'Shogun'. The general reason they fight is due to just one rumor: The shogun can escape this city. All the tools they have are a hilt and the ability to produce a weapon out of it with unknown energy. Follow Rokudo on his journey to find the Shogun, discovering other characters on the way and unveiling their stories bit by bit!