Raised in an underground bunker with only books and a strict routine to keep him sane, Felix never expected to hear another human voice again. When strangers finally pull him into the light, he discovers a world that is both breathtaking and terrifying. The sun is real, the sky stretches endlessly overhead, and humanity still survives, but only behind massive walls, where every soldier bears the scars of a war he never knew existed.
While the surrounding people prepare for the next battle, Felix is left to confront one of his own. After a decade of isolation, the life he once called home is gone forever. As he struggles to find his place among the last remnants of humanity, one question becomes impossible to ignore: if the bunker was meant to save him... what was it really protecting him from?