The year is 2044. The Abyssal War, having raged for two decades, has changed the world significantly. Development of robotics and AI technology have been pushed back due to Abyssal capabilities of interfering with complex technology, instead giving rise to leaps in genetic modification, miniaturization and materials science.

Prototype warships once relegated to design boards and technical papers could now be made a reality - so long as there was a suitable and willing volunteer who was able to survive the process of becoming a shipgirl equivalent.

This is the story of the select few who succeeded.

Spoilers for GFL ahead!