A magnetic storm crashes into the sea. Lin Ye and his ancestral hemisphere figure wander on an unknown desert island that is locked in fog all year round. They encounter Su Xiao on the reef beach carrying a water drop pendant. The two survive together in a desperate situation. They only hope to be rescued, but step by step they fall into a shocking mystery that has been sealed for twenty-four years.
A half-meter giant centipede sprang out of the rock cracks, a wild boar with tusks broke through the wooden door, and alienated creatures spread all over the island, and everything was abnormal. The yellowed log of the abandoned No. 73 Observation Station revealed a corner of the truth: Lin Ye's grandfather, who had been missing for 24 years, and Su Xiao's mother, whom Su Xiao had never met, both belonged to the official scientific expedition team back then, and the entire team eventually disappeared on the island.
The warning of "protecting the core fragments" from the broken page has not yet been issued. His handiwork and her pendant are synchronously heating and resonating. One at a time, two haloes point at the depths of the dense fog in the valley - they are actually the twin keys to unlocking the prehistoric device underground.
Dome mercenaries searched all over the mountain, and the official scientific expedition team broke through the fog to land on the island. The silent island instantly turned into a multi-party wrestling field. The two sneaked underground with the key, and only when they encountered the starry sky made of suspended gravel did they understand: they had been the indispensable key to this secret game that had been guarded for twenty-four years since they were born.