Tetta Kisaki is a major antagonist in the anime and manga series Tokyo Revengers. As a cunning and manipulative mastermind, Kisaki orchestrates many of the tragic events that drive the series' plot. He is known for his intelligence, ambition, and ruthless tactics, often manipulating others to achieve his goals. Kisaki's actions and schemes make him a central obstacle for the protagonist, Takemichi Hanagaki, as he seeks to change the future and save his friends. Kisaki's influence is crucial to the unfolding of the story.