Koji Shida is a college student who hopes to become a photographer. He spends an afternoon in the park snapping photos of passersby. Koji is then interrupted by Takashi Hatsushima who offers a large sum of cash to follow his wife Yurika and baby daughter as they walk through the park. The man suspects his wife may be using the walks as a pretense while having an extra-marital affair. Koji's assignment is set to change his relationships with the women around him.