A girl invents impossible machines in 1920s Japan with no idea how they work, only that they have to. The story spirals toward a real disaster everyone knows is coming, but you don't know what her devices will cost when it arrives. Despera moves quietly until it doesn't, trading spectacle for the weight of a kid trying to build her way out of a future she can feel approaching.
Fourteen-year-old Ain possesses an extraordinary gift: she can construct complex mechanical devices without formal training or scientific education, as if guided by intuition alone. Set in 1922 Japan during the Taisho period, her inventions begin attracting dangerous attention from those who would weaponize her abilities for their own purposes. As tensions simmer beneath the surface of society and whispers of coming catastrophe spread through Tokyo, Ain must navigate a world that views her talent as either salvation or threat. Her creations grow increasingly ambitious, and she struggles to understand both the source of her mysterious gift and the true consequences of what she builds. Around her, the city itself seems to hold its breath, waiting for something inevitable. What Ain discovers about herself and her inventions could reshape everything, but first she must survive those who want to control her, and perhaps herself most of all. This is a story about genius, ambition, and the weight of creating something you cannot fully comprehend.