Wana no Senso

Following Zeni no Senso and Uso no Senso, Wana no Senso is the third work of the "war" series. The drama centers around Washizu Toru, a parliamentary secretary who is betrayed by a member of the Parliament, to whom he has devoted 20 years of his life, and decides to take revenge on the politicians who wield power over him.
(Source: DramaWiki)