Summary On June 2, 2023, Asahi Shimbun published an article by Professor Nobumasa Akiyama, Dean of the School of International and Public Policy, Hitotsubashi University, titled "(My Perspective) Significance of the Hiroshima Vision: Embracing Leaders, the Power of the Atomic-Bombed City.” In this article, the significance of the G7 Summit in the context of nuclear disarmament was discussed. Professor Akiyama analyzed the G7 Hiroshima Summit from the nuclear disarmament perspective, focusing on norms and responsibilities. He explained that the joint statement by the G7 members opposing nuclear war reaffirms the importance of the norm of non-use of nuclear weapons, which has been always upheld in the postwar era. Moreover, he argued that political leaders have the responsibility to protect national security and achieve a "world without nuclear weapons." Lastly, Professor Akiyama suggested that immediate policy changes following the Hiroshima Summit are improbable. However, the awareness of norms and responsibilities should eventually become a significant force for change.