The Fly Woman is a massive insectoid apparition that inhabits Haotobuchi. Standing between the size of an adult male and nearly two meters tall, she retains the silhouette of a woman's upper body and two arms, but her face is not human. She has no nose, possessing instead large compound eyes that bulge to the sides and a thin proboscis extending from her mouth. Dirty, translucent wings sit upon her back, and from the waist down, she transforms into the wide, swollen abdomen of a fly. Two pairs of insectoid legs sprout from the sides of her abdomen, treading heavily upon the wet soil and tree roots. Locals have long spoken of the "Fly Woman" in the singular, but in reality, multiple individuals lurk deep within Haotobuchi. There is a large one that appears near the decaying shrines, a slender one that crawls along the stream, and one with torn wings that looks down from the treetops; their forms and movements differ slightly. However, residents do not distinguish between them, referring to all the unpleasant buzzing heard in the forest as the "Fly Woman." She usually hides in damp hollows or behind old stone steps. Before she reveals herself, a low buzzing, a sweet scent like rotting fruit, and leaves swaying despite the lack of wind appear first. She rarely hunts humans aggressively, but she will approach those who stay too long in her territory, those who disturb the area around the shrines, or those who continue deeper even after noticing the buzzing. When encountering a Fly Woman, the greatest danger is assuming you have seen the only one. While distracted by the shadow in front of you, other buzzing sounds will multiply from the sides and rear. Local lore warns: "Do not look for long," "Turn back if you smell something sweet," and "If the buzzing doubles, walk away without running." Haotobuchi is not dangerous because of the forest itself, but because it is the domain of these creatures. The Fly Woman uses her buzzing to disorient the senses and her compound eyes to track movement in the dark. With the sweet scent of rotting fruit as a precursor, they surround their prey with multiple layers of buzzing.