What are the code of conduct and customs of Japanese samurai?

Righteousness is above all else, and you must not do unjust things.

Absolute obedience to the master

Obey the elders and take care of the young.

Don't do anything unfair to others.

Don't be afraid of death, take death as the highest honor.

You must keep your promise. If Chen Nuo can't deliver it immediately, you must deliver it all your life, otherwise it will be a shame.

Be proud of luxury and not ashamed of poverty.

Be proud of being poor and pursue the highest level of service.

Don't bully the weak

Don't bully the less with more.

Do not rob women and children.

Never attack your opponent from behind.

Later bushido principles include

Don't talk to women in the street.

Take the pursuit of kendo and knowledge as the highest pursuit

To take revenge for righteousness, you must first write a revenge book and take revenge with the official permission ~ you must not secretly hurt people in an aboveboard duel within the specified time.

Once revenge exceeds time or fails, you must give up revenge or write a revenge book again.

If you have to agree to a duel on a formal occasion, you will pose a formal challenge.