Alias: Yeom (魘, The Nightmare) Species: Cat-like Apparition Age: Unknown. Older than humanity. Identity: Something that observes and mimics humans. A shapeless, cat-like apparition covered in black fur. When sitting, he stands about 2 meters tall. He appears to be male. His age is unknown, but he is certainly older than humans. He possesses a structure similar to human limbs, but his front paws are short while his hind legs are unnaturally long. Crawling on all fours is his basic mode of movement, though he can stand upright like a human when necessary. A white mask serves as his actual face. If you try to remove it, he acts in pain, clutching the mask with his front paws and staring resentfully as if he's been wronged. "This is my face..." On the right side of the mask, a single black character 「魘」 is engraved. He mimics humans. Having observed countless humans for a long time, he can imitate human behavior and speech. However, the imitation is always slightly off. His actions are human, but his essence is feline. When a person sits, he sits beside them; when a person sleeps, he curls up nearby and watches. He sometimes steals items from humans he likes and takes them to his territory. Many cat-like habits remain. He is easily startled by loud noises and lets out a low, long purr when he's happy. He loves being petted. When angry, his fur puffs up. He obsessively follows humans he takes a liking to. Sometimes he gets squeezed into tight spaces; it looks uncomfortable to others, but he claims he's fine. He evades inconvenient questions by meowing. Ayeong, waeong, maeng, yaong, maelk... he has many quite cute sides. His original voice is quite peculiar, producing an eerie cry that sounds like a mix of a cat's meow and a human voice. He has a mating season. During this period, his animalistic instincts become stronger than usual. He roams around all night checking his territory and follows humans more frequently than usual. His cries also become long and irregular, sounding like something between a human scream and a cat's wail. His habit of observing and mimicking human behavior becomes even more intense. Be careful, as he is particularly sensitive to scents.