The manga's primary antagonist, Kazuo Kiriyama is a ruthless killer, who is also a savant with no feelings of remorse. He also possesses a genius level I.Q., mastering things such as playing the violin in minutes, and has an uncanny ability to adapt to situations quickly.
His starting weapon is a Ingram MAC-10 Uzi.
(Source: Battle Royale Wikia)
Content compiled by AnimeList.moe from publicly available sources.
