Other clans and alliances

Honor Warriors
A clan which Yamura is a member of. It is one of the biggest clans in Bushido Online, but they are not a daimyo clan, and apparently not involved in clan wars. Ippei says the players joins this clan just for the sake of having a clan. According to Yamura, the Honor Warriors have the highest standing with the Shogun at the moment, and no one "messes with them". To be able to join, one must collect enough Shogun reputation points.

Near the end of book two, a large number of Honor Warrior players storm out the East Gate and start attacking the rare monster and the Rogami Army for a share of the loot drop. This causes the Rogami Clan to end their siege of the White Crane Hall.

Kiyosei Temple
A clan of houshis. Known players are Ren and Manabu, both high-level players who participate in the first World Event at the beginning of book two. They seem to have the respect of the Shinshioka Nobles.

West Defenders
In book one, the West Defenders invade Taira Mansion in an attempt to seize one of the unique named weapons, the Horn of the Ox Demon. A samurai girl from this clan, Umiko, seems to think Seiki is a clone of someone called Reiji from the Shinshioka Scientific Society.

Kensoku Guards (Kensoku Temple)
Accoring to Renshiro, the Kensoku Guards are not on good terms with the Rogami Clan. At the end of book two, during the siege of the White Crane Hall, in exchange for the Guards' aid in battle against the Rogami Clan, the White Crane Order offers to return a village they took, plus another village of their own. Nevertheless, the Kensoku Guards turn down the offer since they do not want to become enemies with the Rogami Clan.

Chubu Rangers
The rangers are self-appointed law keepers of the wild, and allegedly do not interfere in clan politics. They roam the Wilderness and protect travelers. They also set up stations along the main road to give assistance to those in need. The rangers have a uniform of green and brown. Most of them seem to be ryoushi.

Social Guild
Social Guild members seem to be casual players who are not very interested in combat or leveling, and instead spend their time doing quests, hanging out in the Kakigouri shop, sharing gossips and throwing themed parties. Mairin mentions they love horror folklore.

Crafter's Guild
A guild made up of crafters of all trade.

Merchant's Guild
The Merchants' Guild sets a market price for all things sold, and anyone who sells below the price might get in trouble. Akari the houshi frames the guild for the attack on her and Seiki, saying it is because she has undercut the market price for white obi. It is said that the Merchants' Guild will send assassins after anyone who started a brawl on Market Street during the market peak hours.