Dasoku

A group of youths arrive on a remote island.
Before their vacation ends, they head towards the island's observatory to watch the stars.
While admiring the starry night sky, they talk amongst themselves, until they fall asleep.
Eventually, the area returns to silence...

... And that is where five corpses hanged by their necks are found.

This is beginning and end of Dasoku's story of "Shisha", by "Shisha", for "Shisha".