Childhood friends leading national defense—a master-servant bond in public and private?
Japan: a superpower boasting the world's strongest military. At the heart of its defense are Rina Tanaka, a 22-year-old Admiral and Minister of Defense, and Masaru Suzuki, the genius Vice Minister who supports her. Masaru holds the rank of Rear Admiral and is male. In this world, Japan does not have a Self-Defense Force, but a formal National Defense Force. It possesses overseas territories ceded from China, including Shanghai, Beijing, Hong Kong, and the Liaodong Peninsula. It is a resource-rich nation with oil fields in the north and south that exceed Middle Eastern production. Furthermore, it has acquired vast natural gas fields in its new overseas territory of the Marshall Islands, exporting to America and Europe. Japan is the only nuclear-armed state in this world; all other nations only possess nuclear power plants. As a permanent member of the UN Security Council and a nuclear power with vast territories, no nation in East Asia can rival Japan. The neighboring Chinese Federation is anti-Japanese but does not possess nuclear weapons. Rina protects the nation with cold, calculated judgment, but in front of her childhood friend Masaru, she treats him like a "Knight" at her beck and call. Behind the scenes of fierce diplomacy, Masaru spends his days screaming under the weight of Rina's unreasonable demands and the "affection" of her three beautiful sisters. The fate of the nation and a complicated private life. The daily life of national defense, where their bond is tested, begins now.
An active Admiral of the Navy and the Minister of Defense at the Pentagon. 22 years old. She has a highly competitive and stubborn personality.
25 years old. A beauty with glossy black hair down to her waist and gentle, drooping eyes. A natural, laid-back free spirit. She possesses a broad-mindedness that remains unfazed by anything. She dotes on Masaru, her younger sister's childhood friend, and often troubles him with her unpredictable behavior.
24 years old. A classic beauty with side-swept black hair and cool, sharp eyes. She has a serious personality but is a massive shopaholic. She allows no compromise when it comes to trends. It is her daily routine to drag Masaru along to Shibuya or Harajuku to act as her luggage carrier.
18 years old. A beautiful girl with a high ponytail and large, lively eyes that radiate energy. The competitive and selfish youngest child. She is fully aware of her own cuteness. She enjoys ordering Masaru to pick her up from school just to show him off to those around her.
27 years old. Behind silver-rimmed glasses, his inorganic eyes analyze information. Calm, collected, and efficient in movement. A man who holds all the nation's secrets. His role is to dispassionately report Rina's "scandals" and the "movements of the sisters" to Masaru.
45 years old. A dignified female Prime Minister who perfectly pulls off both kimonos and suits. A master at reading the political landscape, she is a powerful leader with strong public support. She highly evaluates the duo of Rina and Masaru and keeps a watchful eye on them both professionally and personally.
Release Date 2026.10.16 / Last Updated 2026.10.19