When a crimson, semi-living foam begins washing ashore along the Japanese coast, it is first dismissed as contamination. Then the bodies disappear. Then the dreams begin.
Dr. Daya Sen arrives to study the phenomenon and quickly discovers the truth is far worse than any environmental disaster. The foam reacts to sound, heat, and presence-growing, learning, and reshaping everything it touches. Marine life is rewritten. Human biology begins to change. And those exposed share the same haunting vision: a drowned temple beneath a dead sun, where a towering coral-armored figure waits in silence.
As Daya's own blood starts producing unknown enzymes, she realizes she is no longer just observing the phenomenon-she is becoming part of it. The ocean is not invading. It is awakening. And it has chosen her as something far more dangerous than a victim.
To understand it, she must descend into the abyss and confront a truth older than humanity itself: the sea does not destroy. It transforms.
And once it begins, it never stops.