A flight bound for Kyoto to attend an international mathematics summit is mysteriously diverted from its course and crashes onto the frozen tundra of Alaska.

Five passengers are forced into a land that is both brutally cold and deeply unsettling—a place that does not merely take lives, but slowly devours humanity itself.

You play as Sunny, a mathematician struggling to survive alongside companions of vastly different personalities, trapped in polar night, raging blizzards, and ever-present unknown dangers. With resources scarce, no clear direction, and rescue nowhere in sight, every step forward is a risk.

In Alaska, survival is never guaranteed. How far are you willing to go to stay alive?