In 2133 AD, the world fell into desolation and chaos. Foolish humans destroyed the places they lived with nuclear weapons. After the smoke and flames of war, the new city of Olympus, which was pregnant with hope, was established. The high-tech product of cyborgs made a grand appearance and served the human race, while ESWAT took on the responsibility of safeguarding world peace. During a mission, Brianos (voiced by Yamadera Koichi) was seriously injured while protecting his girlfriend Dina Natsu (voiced by Kobayashi Ai). After that, the ESWAT executives used Brianos' genes to create the cyborg Tres and let him and Dina form a new partner. Although quite resistant, after a period of getting along, Dina's heart quietly changed. At the same time, robots lost control and endangered humans in various places, and the weapons they used were all directed at Poseidon, the largest producer of heavy industry. The Olympus executives studied to strengthen the monitoring of communication satellites. Suddenly, the modified cyborgs inside ESWAT also lost control. A new crisis emerges and Dina faces a major choice...