Create an original yokai named Mugao. This yokai has a completely flat

Create an original yokai named Mugao. This yokai has a completely flat, expressionless face, long white hair, wears a black kimono, moves without making a sound, causes a drop in temperature when standing in front of someone, makes it hard to breathe when near, and emits a quiet sobbing sound. The background is an abandoned shrine, emphasizing a haunting and eerie atmosphere.