Naoki Sasauchi is a supporting character in the anime Kado: The Right Answer, appearing throughout the series as a government official involved in the response to the anomalous cube known as Kado. He is a middle-aged Japanese man with grey hair and brown eyes, and his name, meaning straight or direct self, reflects his pragmatic and straightforward nature. Sasauchi serves as a member of the National Parliament or a high-level bureaucrat, working closely with other key figures such as Koujirou Shindou and Saraka Tsukai during the negotiations with the extraterrestrial being Yaha-kui zaShunina. His role is primarily behind the scenes, contributing to the political and strategic decision-making process as the government grapples with the implications of the alien technology and the anisotropic realm. He is characterized by a calm, analytical demeanor and a sense of duty, focusing on the practical and legal aspects of the unprecedented situation. While he does not possess any special abilities, his expertise in government protocol and his ability to navigate bureaucratic challenges make him a reliable part of the team. Throughout the story, Sasauchi remains a steady presence, though his development is limited as he primarily supports the main cast in their efforts to find the right answer for humanity's future.