Shadowrella/Origin

Origin
The Kage-onna ( Japanese 影女, "shadow woman") is a yōkai and is considered harmless. She is basicly a shadow of a woman (hence her name) that appears either in particularly bright full-moon nights or in dark rooms, in the light falls out of a lit hallway or next room. Then she appears on, or behind paper-covered sliding doors or behind particularly thin silk curtains. Mostly, the Kage-onna has the outline of a young, petite woman with a fan in hands. Less frequently it should appear as an old woman with bell around her neck. Although the kage-onna inflicts no harm herself, she is widely feared. She can give people who see her, a great terror scare because no one is to see her, though her shadow was clearly visible. Moreover, their appearance is often considered bad omen interpreted: either befalls the inhabitants of the house, where the kage-onna appears, an accident or the house is cursed and is inhabited by yōkai. Kage-onna is best illustrated in the book "Konjaku Hyakki Shuui" in 1780 by Sekien Toriyama.