油すまし
PVR「なんか昔はこの辺に油すましという妖怪がいてさぁ」っていうと「今でもいるぞ！」と言って出てくる妖怪です
He is Japanese yokai "aburasumashi"
when someone said "once upon a time there is a ghost called aburasumashi over here.
then suddenly he come out and say "Still here"
…that's all about him. nothing else left.
no one knows what abura-sumashi means.