Sukima onna

Sukima-onna or Gap Girl, as she is more popularly known outside Japan, is a yokai. She is a woman who peers at you from behind any gap in you house. It can be from the space between your wall and furniture, a partially closed drawer, under you couch or the cracks in your walls, doors or floor. No gap is too small for her. The only way to avoid her gaze is to cover every single gap with a tape.