Ayaka Mizuno once had everything: a husband, two children, and a rising career as a manga artist. One sleepless night, exhaustion led to a car crash. Ayaka survived. Her family did not.

Two years later, still haunted by guilt, she retreats to Shiomori, a secluded village in the Nagano mountains. There she discovers Tsukuyomi Lake, a mist-covered body of water feared by the locals. Legends say it lures the living with voices of the dead.

At first she dismisses it. Then she hears her children’s laughter, and sees her husband’s shadow ripple across the surface. Each day the lake shows her more—fragments of joy, echoes of blame—until memory and illusion blur.

Drawn deeper into the fog, Ayaka must face a final choice: endure a reality of silence, or surrender to the water and the family that calls her home.