Mirai Onozawa, a middle school student grappling with family issues, inadvertently manifests her destructive wishes in the form of a catastrophic earthquake. Alongside her younger brother Yuuki, Mirai embarks on a reluctant trip to an exhibition in Odaiba, only to be caught in the chaos of a massive quake that ravages the Kanto region. Stranded and overwhelmed by the disaster's impact, the siblings encounter Mari Kusakabe, a resilient single mother on a motorcycle, who extends a helping hand. Determined to find their way back home and reunite with their loved ones, the unlikely trio navigates a treacherous path through the shattered cityscape, braving challenges and forging an unbreakable bond.