C303 Proud!

"Buzz! Buzz! Buzz!"

Before long, a buzzing sound came from outside. It was the sound of the airflow produced by the rapid beating of the wings. The buzzing sound grew louder and louder, as if thousands of engines were starting at the same time, causing everyone's internal organs to tremble.

The light in the cave was dim, and there were a few flashlights that were barely able to see