The most troublemaker things are Hogosha and Farmers, they are not unlawfuls they are not lawfuls.
To make it simple, if they are not doing anything wrong, you Konnichiwa to them, if they are pirating, you arrest them (if you are lawful).
The rest from those factions you can learn it in game.
Dragons, former samurais (some of them), they want to reinstall their former government.
You forgot the GC, which is a female movement, and cardi addicts, they are friendly with outcasts, and do the most rutine piracy around.
Outcasts, you won't see many stablished outcasts in kusari, the few you meet are some few who want to pirate around.
Samura is related to the farmers and hogosha.
Kishiro is neutral to dragons.
GMG, kinda hates samura.
EDIT: It's GAIJIN
Also, we don't hate gaijins, not all of us. Farmers do, hogosha do, some KNF do, Samura do, Kishiro don't. Most of KNF and KSP don't. They are a... not so open. It's a closed society.
Still, it's up to everychar (except for Hogosha and Farmers they do hate outsiders, and samura don't want more competitors).
