Can somebody tell me the name of this Japanese myth?

Question

Well, I was told on a forum it is apparently a myth, but nobody confirmed this.

http://www.youtube.com/watch?v=DBLC_RVwkdg

Answer 1

See, I think it is not a myth - there was a little box in the top corner - showing the japanese peoples reactions. If they had heard of this myth they wouldn't have all looked so shocked.

You do mean by myth, that this is some well known urban legend in japan don't you? Or are you asking if that really happened to someone in japan or whether it was just something they made for tv - you've got me all confused now...