AFAIK theres no difference. “Harakiri” was just what the nobility called it condescendingly when poor people did it. It’s not a verb vs noun thing.
The subject being a samurai means they would probably employ a kaishaku to retain their honour. The role of kaishaku was given to someone skilled and trusted, because they had to cut as much as possible in a single blow without beheading the subject thus destroying their honour.
AFAIK theres no difference. “Harakiri” was just what the nobility called it condescendingly when poor people did it. It’s not a verb vs noun thing.
The subject being a samurai means they would probably employ a kaishaku to retain their honour. The role of kaishaku was given to someone skilled and trusted, because they had to cut as much as possible in a single blow without beheading the subject thus destroying their honour.