In a world where giant fish progressively encroach upon human domain, people either band together or exploit one another. The threat posed by the giant creatures shows no sign of waning, and the humans encountered along the way are far from a comforting sight—they prove to be even more dangerous than before. While human survival instincts drive endless suffering and pain, the threat of these colossal fish begins to evolve into an entirely new kind of danger. Amidst this chaos, Hanna survives completely alone, as if running away from something or trying to process a past event. However, the world grants no leisure to compose one's heart.