Suddenly, on a small island.
Because its area was too small, the entire island was enveloped within a single building.
Inside the building, a team of soldiers had been stationed all year round in this challenging environment, guarding the nation's territorial waters.
Early in the morning, the soldiers were on the rooftop tending to their vegetable patches.
Indeed, even deep in the sea, they had not forgotten to grow vegetables.
The officer leading the team had recently submitted a report, hoping to build a coop for raising chickens.
They had just finished their tasks on the rooftop and were about to go down when they felt a slight tremble on the ground.
"Was there an earthquake in the nearby sea?"
A round-faced soldier exclaimed with a hint of surprise.
Then, before the officer could soothe everyone, they saw towering waves suddenly appearing from all directions around the island.
The sky also turned dark in the blink of an eye.