Tezuka made this for people who watch insects and see mythology. Each of the five segments uses a different animation language to match what he was actually looking at, turning observation into something that feels like remembering a dream you forgot you had. The formal essay becomes the opposite of what essays usually do: it doesn't explain the mystery, it deepens it. This is what happens when a master animator decides to document wonder instead of plot.
Young Tezuka Osamu chases a magnificent swallowtail butterfly through memories and dreams, his net forever reaching for something just beyond grasp. Around this central pursuit, five distinct animated vignettes unfold, each one a different visual interpretation of insect observations drawn from the creator's own essays. Science and poetry collide as straightforward entomological study transforms into something stranger, more mythical, stranger still. Each segment employs its own animation style to capture how insects reveal hidden patterns in nature and the human imagination. Between sequences, the boy returns to his obsessive hunt, the Oomurasaki butterfly serving as both literal subject and metaphor for the intangible beauty that drives curiosity. The film moves fluidly between clinical observation and dreamlike speculation, asking what happens when rational study of the natural world opens doors to something unexplainable. This is Tezuka reflecting on his own artistic genesis through the lens of his childhood wonder, presenting insects not as mere creatures but as gateways to understanding how creativity bridges the gap between what we can measure and what we can only feel.