Kaito is a faction associated with the Phoenix Clan, linked to Shiba Midori, a recognized Phoenix Clan shugenja. Its members include notable figures such as Asako Taishi, Bayushi Monban, Doji Setsuna, and Kakita Kazumi, who are traveling to the Castle of the Swift Sword in Lion Clan territory. The Kaito faction is known for its members' deep understanding of spiritual matters, particularly Shiba Midori, who has studied the ways of spirits for many years. They are committed to justice and duty, serving as Emerald Magistrates responsible for upholding the Emperor's laws and combating his enemies.
As they journey, the group discusses Asako Taishi's disorganized paperwork and the dangerous knowledge he claims to possess, which he seeks to have authenticated. Bayushi Monban and Doji Setsuna agree to escort Taishi for safe authentication at the Castle of the Swift Sword, known for its arcane knowledge. They express concerns about the risks associated with the knowledge Taishi holds, alluding to unfortunate events that affected those who learned of it.
Approaching the Castle of the Swift Sword, they encounter an ambush filled with obscuring smoke. Asako Taishi pleads for protection under the Emerald Magistrates' authority. The group responds with various defensive measures, including Bayushi Monban invoking a kiho to protect Taishi. Despite their efforts, Taishi is targeted and grappled by the ambushers, prompting the group to assert their authority and resolve the conflict while remaining vigilant against further threats.