Kouchuugun Shikan Boukensha ni Naru

The spaceship which Imperial Galactic Navy Officer Alan Corinth helmed was shot down by a surprise attack during hyperspace 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 Alans quest for survival on the underdeveloped planet utilizing the symbiotic nanomachines Nanom within his body
Surprisingly the planet was home to a thriving human civilization whose genetic code closely resembled Alans 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 Scifi Fantasy story in a Medieval setting now begins