The strength of a Fighter is amplified when their Sacrifice is supporting them: until Nisei Akame, a talented Fighter, meets Seimei Aoyagi, he is unable to manipulate anything heavier than one kilogram. However, later in the series Nisei Akame and Soubi Agatsuma are shown fighting by themselves with considerable power, presumably because they are now sufficiently advanced to be able to do so. There also exist blank Fighters, such as Soubi Agatsuma, who do not possess a destined name but can be "given" a name according to Ritsu Minami.