Kitsune are normally thought to be amoral, meaning their concept of right and wrong is at the bare minimum. Depending on how the situation affects them, they may choose to take part in it or not. Kitsune are very flexible to, as they come to deal with their surroundings their personality can be changed slightly.
Kitsune have their own honor code, but are willing to adopt the norms and such of a society to continue to be part of that group efficiently. Most Kitsune will repay kindness with great friendship and aid, assisting the person as within its ability. Those treating a Kitsune in a way it judges as offensive can be in for a long haul as their vengance can be great and prolonged.