Political disillusionment is widespread in contemporary Japanese society, despite people’s struggles in the recession. Our social relationships become entangled, and we can no longer clearly identify our interest in politics. The search for the outside of stagnant reality sometimes leads marginalised young people to a disastrous imaginary for social change, such as war and death. The imaginary of disaster was actualised in March 2011. The huge earthquake and tsunami caused the meltdown of the Fukushima Daiichi nuclear plant, which triggered the largest wave of activism since the 1960s. Based on the author’s fieldwork on the post-Fukushima anti-nuclear movements in Tokyo, this thesis investigates how the disaster impacted people’s sense o...