In the early 1990s, the Japanese government secretly conducted human evolution experiments. They used different methods to transfer animal or insect genes into the bodies of two groups of experimental children to give them super-long abilities. In contrast, these children must face the fate of physical collapse in adulthood. Twenty years later, Subaru Group including Subaru Ezuki (Masaki Okada), Saya (Riko Narumi), Wataru (Haya Shiraishi), Ryuji (Toshiki Seto), Ryosuke (Hitoya Shimizu) became tools of politician Watase (Tsuyoshi Ihara) and engaged in work that could not be made public. Not long after, the Papilio group led by Xue (Shota Sometani), Shizu (Ayara Takatsuki), Zhuang (Nobuyuki Suzuki), Xiu (Shuntaro Yanagi), Aoi (Yuina Kuroshima), and Tao (Moyu Matsuoka) launched revenge on the people who created their unfair fate. The two tragic groups collided with fate... This film is adapted from the original novel by Honda Takayoshi.