Captain Nimura is a character from the manga series Dragon Head, which was also adapted into a live-action film. He is a member of a military helicopter crew that becomes separated from its main group while on a mission. Nimura serves as the captain of this crew, which includes pilot Iwada and crewmen Yamazaki and Oike. They encounter the main protagonists, Teru Aoki and Ako Seto, while searching for supplies and fuel in an abandoned town during the post-disaster setting. Nimura is initially presented as a leader figure, but he is also described as unstable. He and his crew are deserters from the military, and their goals shift from survival to more predatory intentions as the story progresses. Nimura possesses a notable understanding of human psychology and instinct, often discussing the nature of fear and survival. His motivations are largely driven by self-interest and a desire to exert control in the chaotic new world. He views the disaster as an opportunity to discard military discipline and follow his own impulses. Nimura’s role in the story is that of an antagonist who initially appears as a potential ally but later reveals his true, dangerous nature. His crew turns hostile toward Teru and Ako, leading to a violent confrontation where Teru accidentally kills one crew member with a Molotov cocktail. After this, Nimura’s relationship with the protagonists becomes one of pursuit and conflict. He develops a particular fixation on Ako, attempting to claim her for himself, and he later turns on Teru directly, revealing the truth about the deaths of Teru's family in the disaster. Nimura’s key relationship is with his pilot Iwada, who grows increasingly disgusted with Nimura’s ego-driven and violent behavior but remains with the group out of necessity. Nimura also interacts with other survivors, including the mysterious boy Kikuchi and a group of suicide cultists on the Izu peninsula. His character undergoes a development from a seemingly competent military leader to a figure driven by pure, unregulated instinct. He shows himself to be intellectually sharp, using his knowledge of human nature to manipulate or intimidate others, but his actions become more reckless and predatory as he sheds the last remnants of military order. In the final stages of the story, Nimura confronts Teru and Ako in the ruins of Tokyo, where he attempts to kill Teru and take Ako. He is ultimately subdued, but he survives the story, remaining alive in the devastated Tokyo landscape. His notable abilities include his military training, leadership skills, proficiency with firearms and helicopters, and his keen insight into psychological manipulation and survival tactics. Nimura remains a survivor who adapts to the lawless world by embracing its brutality rather than seeking to rebuild order.