Miyazawa takes a kid watching his world collapse and makes you feel every inch of that helplessness without a single wasted moment. Gusuko doesn't get to be a hero, doesn't discover some secret power, doesn't even get to save what matters most. He just keeps moving forward into a life that demands everything from him, and you watch him become who he has to be, not who he wanted to be.
Budori grows up in rural poverty, surrounded by his family and the harsh cycles of nature. When famine and drought devastate the countryside, his world shatters. His sister vanishes, his parents disappear, and he's left alone to survive in a world that offers no mercy to the poor and powerless. Determined that no one else should suffer as his family has, Budori dedicates himself to understanding the forces that destroy lives. He discovers the Iihatov Volcano Department, a group of scientists working to predict and prevent natural disasters. There, he finally finds purpose: using knowledge and innovation as weapons against the calamities that shattered his childhood. The film traces Budori's journey from heartbroken orphan to visionary, showing how grief transforms into ambition. It's a meditation on loss, resilience, and the power of individual will to challenge fate itself. The story asks whether one person's determination can truly change the world, and what it costs to keep fighting when the fight seems endless.