Soul-Burning Twin Stars: Night Owl and Pegasus

If you turn on the mecha, you will die, if you don't turn on the mecha, humans will die. In 2150 AD, the alien giant "Fenrir" arrived. All human weapons are useless in front of them. The only means of resistance is to drive the humanoid body "Backfire" equipped with a "bio-disintegrator". The price is that with every sortie, the radiation burns the pilot's cells. Lifespan is not measured in years, but in terms of the number of attacks. They are called "candle wicks", lighting up the night and burning themselves out. This war is called the "Soul-Burning War".