Post war Japan is at its lowest point when a new crisis emerges in the form of a giant monster, baptized in the horrific power of the atomic bomb.

Lupin III goes on a grand adventure to uncover the secrets of the Bresson Diary, which is tied to the legacy of his famous grandfather.

Not only is Kamakura-based Masakazu Isshiki a mystery novelist, but he is also a good detective himself. His wife Akiko and he are acquainted with all manners of creatures and gods who are of, from or passing through the town...