Yakuza

The Yakuza, also known as gokudō ("extreme path" in Japanese) are a criminal organization that has existed since the 1600s. The Yakuza call themselves the ninkyō dantai, meaning "chivalrous organizations."

Background
Founded in the 1600s, the Yakuza emerged during the Edo period, and got started peddling stolen goods. They gradually grew into mafia-esque organization, the Japanese equivalent of American gangsters. At their height, the Yakuza spanned the entire world and had nearly a million members. Because of their strict codes and organizational structure, they survived the nuclear apocalypse.

The Yakuza existed in a reduced capacity in California, mainly as a fringe group for disenfranchised ethnic Japanese and young males in New Reno. However, by 2290, with the recession of raiders and slavers, and the increase of NCR laws and restrictions, the Yakuza have blossomed, experiencing a return to form not seen since the Old World.

They have become the largest criminal element in New California outside of New Reno, even enjoying a large presence within the city. Many former Khans and slavers have joined the Yakuza, agreeing to the organizations strict codes of conduct. The Yakuza see themselves as honorable, compared to other deviant groups of the period, although in reality they are little better. The NCR tries their best to crack down on them, but the Yakuza have weather the test of time and won't be going away soon. The Yakuza have a massive presence in San Francisco, thanks to the high Asian-American population, as well as in New Reno, and the Boneyard. Their influence is gradually spreading.

Notable Members
The Yakuza have a rigid hierarchy. Atop the hierarchy is the oyabun, the family boss, and below him are the saiko-komon, the wakagashira, and the shateigashira. The gashiras are his lieutenants, his left and right hand men. The saiko-komon is his administrator and typically operates the Yakuza's legitimate front, while the lieutenants assist in leading the criminal element of the organization. The shingiin and kaikei are the bookkeepers of the legitimate business. The kyodai are high-ranking members in the organization, and the shatei are low-ranking members or new recruits.
 * Randall Clark (former)
 * Bosu No-Kiba (leader)
 * Kabu Chotto (first lieutenant)
 * Hagane Inchi (second lieutenant)