Founded after the Empire's first violent encounter with gaijin, the Tortoise Clan is nearly an Imperial family, yet remains distinctly separate from the rest of the families. The Kasuga family has performed crucial feats for the Emperor and is ready to commit all manner of devious acts to maintain the Emperor's power. In many ways, the samurai of the Tortoise Clan serve as the true underhand of the Emperor, with a strong tie to the criminal organizations of the land. They act as the Minor Clans' representation in the Imperial Court, giving voice to those who are too small to attend.
Agasha Kasuga was a man possessed of great curiosity, but also a man who placed the security of the Empire above all else, including his own purity. His guidance awards you a +1k1 bonus to any Skill Roll in which you are performing a dishonorable act (one that will cause you a loss of Honor) that is sanctioned by your duty to the Imperial house.
The Tortoise Clan’s limited military capabilities consist primarily of those trained in the Tortoise Guard technique (published in the L5R 4th Edition supplement Imperial Histories). However, due to the unique nature and duties of the Tortoise Clan, the clan has long found it useful to train certain men and women in the arts of murder and assassination. Some of these killers go on to serve in the Guard, disguising their true nature beneath conventional martial duties, while others remain within the ranks of the Tortoise merchants and sailors.
Although the Tortoise Clan is too small to have a true bushi school, the clan has always recognized the value of defense, especially given the frequency with which its members must enter foreign ports, smugglers' dens, and other such unsavory locations. The original membership of the Tortoise included a number of gaijin, and over the years they adapted their own strange fighting style to the weapons of their new home; with time it evolves into the technique which the Tortoise teach in modern times.
The Kasuga are as true to the Imperial cause as any other clan, though one often wouldn't know this from watching their activities. They perform illegal acts with murderers and thieves and have established a strong connection to criminal cartels across the land. The Tortoise are in fact monitoring these conspiracies in the Emperor's name to make sure the safety of the Empire is not at stake. They also conduct extensive trade in foreign lands in order to ensure that gaijin cannot again threaten Rokugan as they did in the past.
The Kasuga have little ambition, as the recognition of the Emperor outweighs any need for widespread fame. They are pragmatic and bitter from years of fighting for the cause with the scum of the Empire. They are smugglers, thieves, and often quite brutish, although they are also capable of being smooth diplomats when the clan requires such.