Crayon Angel follows Tanaami as he revisits his childhood memories of wartime Japan during the Second World War. The animation blends wartime footage, family photographs, and pop imagery, often framed by fusuma‑style grids that fragment and distance the view. Its soundtrack features a haunting heartbeat, siren wails, and the moans of Robert Plant. The title references a wartime confectionery campaign that invited children to submit crayon drawings of the company’s angel mascot, a memory that left a profound emotional imprint on Tanaami.