Kaiju

Kaiju was a member of the Scorpion Clan who was trained in the Kaiu art of the swordsmithing. With the death of Gate, a ronin who oversaw “Swords Polished”, entrance to the Licensed Quarter at Ryoko Owari, the Scorpion covertly assumed control of the post. Kaiju posed as a ronin, and greeted any samurai who arrived to Teardrop Island, who surrendered to him their blades for polishing. This operative allowed the island to remain relatively calm, while providing a valued, respectable service to samurai.

Agent
Kaiju gathered any information about the samurai or their weapons, and on very rare occasion, he made subtle changes to the weapons to throw off a samurai's skill. This was only done immediately prior to a duel to give a Scorpion the edge.