the Sea of Trees is also known as the Suicide Forest. People go there to kill themselves. Lots of people. I have a February 7, 2003, article from the Japan Times (a Japanese newspaper published in English). It reports that in 2002 alone police recovered from Aokigahara the bodies of seventy-eight “apparent” suicides, and that they stopped another eighty-three people intent upon taking their lives who were found in the forest and placed in “protective custody.”