Create an original yokai named Sakeko. This yokai is a woman with a mouth split

Create an original yokai named Sakeko. This yokai is a woman with a mouth split from ear to ear, holding shards of a broken mirror, with completely black eyes that do not reflect light, wearing a bloodstained white kimono. When she laughs, the slit widens further, she appears when a cold wind blows, and her laughter echoes ominously. The background is in front of an ancient shrine, emphasizing a haunted and eerie atmosphere.