Kurozumi Orochi

Kurozumi Orochi is the shogun of the Wano Country. Many years ago, he allied with Kaido and the Beast Pirates to kill Kozuki Oden. Since his rule, Wano Country has been polluted and most of the citizens in the country are oppressed by his rule. He is a major antagonist in the Wano Country Arc in One Piece.

Personality
Orochi is considered to be a cruel individual based on what the Kozuki retainers and other individuals have said about him. In the past he was responsible for Kozuki Oden's death and became the shogun of Wano hinting at his intentions to gain power through cruel ways. As the ruler of the Wano Country, Kurozumi has access to the food and water that was not poisoned through the pollutions but seems to not care about the majority of the country that does not have the eatable food and drinkable water. He also does not care about the citizens who are oppressed by the authority of the Beast Pirates. Orochi is also paranoid and fearful of Kozuki Toki's prophecy that he would be defeated one night 20 years after Oden's death by nine samurais.

History
When Kozuki Oden rose to power in the Wano Country, Orochi was aware of this and wanted to know about what Oden knows about Raftel. Around the same time Orochi came into contact with Kaido and became allies. Oden refused to tell them anything about Raftel. With Kaido's help, Orochi managed to execute Oden, destroy his castle, and usurp his position as the new shogun of the Wano Country. Before her death, Kozuki Toki prophesied that Orochi would meet his end 20 years later one night when nine samurais would appear. Since her prophecy, Orochi has been paranoid about that possibility.

Since his usurpation, he maintained a solid rule on Wano Country. Under his allegiance with Kaido, he allows the Beast Pirates to set up factories on Wano Country to help him create his own weapons. Orochi also maintains an oppressive rule over Wano by allowing the factories to pollute the country and the food and water supply leaving most of the country except for the Flower Capital (his territory) and Kaido's territory with untainted food and water supply. When Kin'emon, Kanjuro, Momonosuke, Kiku, and Raizo appeared in Wano, Orochi and Kaido's forces tried to capture them but they managed to escape from them.