Space Battleship Tiramis

In an era when human beings expanded their living areas and desires to the universe, people seeking freedom immigrated to live in the universe. Their wisdom nurtured developed civilizations and unknowingly turned into a threat to the earth. In the year 0156 of the cosmic calendar, the Earth's federal government experienced the fourth contact (4th note) with the grandmother planet Grandimas. It was also from this year that the confrontation between the federal government and the "Medus people" officially began. The war never ends, and the sacrifices continue to increase... In order to open up the war, the federal government sent a heroic young man to join the war. The young man's name is Subaru Ichinose. Not only is he handsome and has excellent grades, he is also the ace pilot of the space battleship [Tiramis]. The hope of all mankind rests on him. ——However, he is actually a "squatter" who has difficulty integrating into the collective life of the Tiramis ship and spends all day locked up in the cockpit of the special machine "Durandal"...