Angel Whisper: The Suspense Visual Novel Left Behind by a Game Creator.

Sinopsis en inglés

This is the last work of a certain game creator who mysteriously disappeared. The cross reality ADV, known for its shocking conclusion. "Angel Whisper", released by Child-Dream in 1999, became a major topic of conversation with its system of playing the posthumous game while browsing actual websites, raising the question, "Did this really happen?".