Kōichi Kabuto is a detective who appears in the anime series Project ARMS and its sequel Project ARMS: The 2nd Chapter. He is driven by his oath to protect and serve the public, a commitment that leads him to take a stand against the shadowy organization known as Egrigori. Recognizing the threat the group poses, he becomes an ally to the four teenagers who carry the ARMS nanomachines, offering his skills and resources to aid their fight. Kabuto is portrayed as a smart and able detective, using his investigative abilities to support the main characters as they uncover the truth behind the ARMS project and Egrigori's plans. His presence provides the team with valuable tactical assistance and a connection to the broader law enforcement world.