In the heart of the Personality Plant, robots are crafted and imbued with the memories of the departed. Among them is Suzu, designed to fill the void left by a lost boy in a grieving family. Fate intertwines Suzu's path with Hotori, a girl grappling with vanishing memories. Together, they navigate the complexities of identity against the backdrop of their shifting recollections, forging a unique bond in the face of uncertainty.