A diver, whose name was unknown, sought out the dangers lurking beneath the water's surface. One day, he explored a cave, which awakened his adventurous spirit. After some time exploring, he tried to return to the surface, but despite his best efforts, he couldn't find his way back. He searched his equipment for a way out and came across his radio, which was playing only white noise. Whenever he used the radio, it grew louder the closer he got to the surface. So he tried...