The spaceship which Imperial Galactic Navy Officer Alan Corinth helmed was shot down by a surprise attack during hyper-space navigation. Completely due to freak coincidence, Alan became the only one in the ship to survive. The severely damaged spaceship lost its navigation capabilities and plummeted onto a nearby planet. Using an escape pod, Alan headed toward the planet alone. Thus began Alan’s quest for survival on the underdeveloped planet utilizing the symbiotic nanomachines within his body. Surprisingly, the planet was home to a thriving human civilization whose genetic code closely resembled Alan’s own. Even while remaining at a loss due to being thrown into a world of swords and magic, he tries to live as best he could together with his newfound comrades. What would Alan achieve this strange world? The Sci-fi Fantasy story in a Medieval setting now begins! ---- Official Site: (https://famitsubunko.jp/specialcontents/kochugun/) - Web Novel (https://ncode.syosetu.com/n3490ee/)