A wandering independent mercenary who shelters with the Rubicon Liberation Front.
Well versed in long-lost classical theater, he has a particular interest in "ninjas" and "kabuki," relics of the past that he learned of from the Japanese immigrant culture which now heavily influences his eccentric style.
Once, when Rokumonsen was on the brink of starvation, he was rescued by Ziyi, who offered him food and shelter—and ever since that day, he has been the sworn enemy of those who would do her and her comrades harm.
Well versed in long-lost classical theater, he has a particular interest in "ninjas" and "kabuki," relics of the past that he learned of from the Japanese immigrant culture which now heavily influences his eccentric style.
Once, when Rokumonsen was on the brink of starvation, he was rescued by Ziyi, who offered him food and shelter—and ever since that day, he has been the sworn enemy of those who would do her and her comrades harm.
— Rokumonsen's Arena profile, Armored Core VI: Fires of Rubicon
"An American samurai or an American cyborg I can believe, or maybe even an American pie. But an American Ninja? Preposterous!"
"Real ninjas wear blue!"
— Gaijin Goombah, repeatedly, in his spinoff series, "Which Ninja?"; it has since become a series-wide Catchphrase
