Japanese society has a history of only 120 years since shedding its feudal system. The origin of feudal system is more than 1,000 years ago, so it is still underlying thought of Japanese. Hara-kiri performed especially by the warrior called samurai as indicated above. The samurai were the members of the military class, the Japanese warriors. Samurai employed a range of weapons such as bows and arrows, spears and guns, but their most famous weapon and their symbol was the sword. Samurai were supposed to lead their lives according to the ethic code of bushido ("the way of the warrior"). Strongly Confucian in nature, Bushido stressed concepts such as loyalty to one's master, self discipline and respectful, ethical behavior.
There are many reasons to commit hara-kiri. For example, after a defeat, some samurai decide to commit hara-kiri rather than being captured or dying a dishonorable death. Japanese culture sometimes called "shame culture" as oppose to the Western "guilt culture." According to this thought in western countries, the absolute moral standard of guilt is the principle of people's behavior, but in Japan, the behavior is ruled by the external feeling of shame. Particularly for samurai in the feudal period, being put to shame in public was as good as being dead. These are examples of hara-kiri from