Strawberry 100% centers on Junpei Manaka, a student whose dream of becoming a filmmaker makes him see everyday life as a search for the perfect shot. One day, while climbing to the roof of his school in search of an image vivid enough to inspire his work, he is caught in an unexpected encounter with a beautiful girl who seems to fall from above him and accidentally reveals her strawberry panties before running away in embarrassment. Junpei never gets a clear look at her face, but the memory of that brief moment lodges itself in his mind and refuses to fade.
Determined to find the mysterious girl and recreate the scene on film, he turns a fleeting coincidence into a romantic pursuit that quickly grows more complicated than he expected. As Junpei keeps chasing both the girl and the inspiration she awakened in him, Strawberry 100% follows his creative ambition, his confusion, and the emotional uncertainty that comes with trying to preserve a perfect moment before it slips away. The series builds its appeal around that rooftop encounter, the intensity of first impressions, and the way a single image can shape a young person's hopes, desire, and sense of direction.