Postwar 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.

Japan, 1944. Trained for intelligence work, Hiroo Onoda, 22 years old, discovers a philosophy contrary to the official line: no suicide; stay alive whatever happens; the mission is more important…

The movie depicts the confrontation between younger brother Akira Miyamoto (Shunya Shiraishi) and older brother Atsushi Miyamoto (Ryohei Suzuki) on Higanjima.