In the era when humans expanded their living areas and their own desires to the universe, people seeking freedom immigrated to live in the universe. Their wisdom gave birth to a developed civilization, which unknowingly turned into a threat to the earth. In the year 0157 of the Universal Calendar, the separated brothers reunited on the battlefield and, under the guidance of the fate called gravity, descended on the mother earth - Earth. Subaru's beloved machine Durandal died heroically due to the heavy blow when it fell into the atmosphere. The screams of Subaru, the ace pilot of the space battleship [Tiramis], resounded over the wreckage. - Subaru, who was sobbing, suddenly had a strange change in his body... ! ! He always stayed in the cockpit and didn't come out, but he actually had cockpit withdrawal symptoms...