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Infidelity and Social Justice, with Nobuko Nakano Shincho-sya, 2022
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Japanese Values Today: Why Has Japanese Democracy Maintained Its Stability? Bungei Shunjyu, 2021
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When in doubt, tell the truth, Shincho-sya, 2020
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Head on, with Hirotada Ototake, Bungei Shunjyu, 2019
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The Meaning of Loneliness, The Taste of Life as a Woman, Shincho-sya, 2019.
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Choosing Politics, with Toru Hashimoto, Bungei Shunjyu, 2019.
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War and Peace in the 21st Century: Why Conscription System is Needed Again, Shincho-sya, 2019.
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Politics that is Important to You, Bungei-Shunjyu, 2018.
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Realism of Nation State, with Naoki Inose, KADOKAWA, 2017.
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A New World Order in the ‘Trump Era,’ Ushio, 2017.
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Dilemma of the State, Shincho-sya, 2017.
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A Guidebook to Japanese Politics and Diplomacy, Bungei Shunjyu 2015.
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Civilian’s War: On the Origins of Aggressive Democracy, Iwanami, 2012.
