The master of the mountain, sitting quietly in a cross-legged position on a rocky area at the summit of a sacred mountain, looking down at the mountains of the lower world shrouded in mist. The figure is wearing a white kariginu worn by Japanese Shinto priests. It is an ancient style with large openings where the body and sleeves join, and a black hitoe layered underneath is visible through the gaps at the shoulders. The attire conveys holiness and antiquity, but is not too ornate, depicted as the clothing of an otherworldly being enshrined as a mountain god. Although he has the form of a man, it is important that he does not look entirely human. Glossy black hair flows straight down to his shoulders and is tied in a ponytail at the back of the head. On his forehead, instead of horns, two long centipede-like jaw-like organs grow to the left and right. These should be presented as biological, irregular foreign objects rather than decorative horns. His features are handsome, but not overly refined as a beautiful young man. He retains long, narrow eyes, maro-mayu (plucked eyebrows), red makeup at the corners of the eyes, and red lips. However, he is not an aesthetic nobleman, but rather an ancient monster dwelling in the mountains who happens to have taken a human form.
The most important elements are the expression and the eyes. The expression shows almost no human emotions. He is composed, but this is not a personal leisure, but rather the indifference of a transcendent being who perceives human activity as nothing more than the changing of the seasons. His head is slightly tilted, and there is a slight sense of limpness in his posture. However, he does not lose his dignity; despite the slumped posture, his status as a being is high. The eyes are not human eyes; one or both eyes harbor a non-human strangeness. The pupils are not ordinary irises, but have an abnormal structure like multiple thin overlapping rings, and the focus is not set on the nearby scenery. Even when wide open, there is no surprise or anger; while the rest of the face is quiet, only the eyes look like the organs of a different creature. The movement of the facial muscles is extremely limited, and neither the mouth nor the eyebrows show almost any emotion. Rather than looking down on humans, it is a quiet, empty gaze, as if he does not recognize humans as beings on the same level as himself from the start. Do not make it a scary face. Make it a face where the more quiet it is, the more eerie it becomes, making the viewer feel anxious on their own.
Around the figure, the presence of a giant centipede, presumed to be his true form, appears as if blending into the mountainside and the mist. It does not appear clearly as a physical entity, but as a mist-like presence drawn with pointillism and ink bleeds, drifting as if coiled around the mountain. This should not be mere background decoration, but should make the viewer feel that a giant centipede is lurking within the mountain itself. The art style is a serene expression with wabi-sabi, fusing Japanese painting (Nihonga) and ink wash painting (Suiboku-ga). The colors used are only black ink and vermilion ink. Utilize bleeding, blurring, negative space, and pointillism to achieve both stillness and strangeness. Avoid making it look like a Chinese immortal or an aesthetic fantasy; instead, emphasize Japanese sacred mountain beliefs and the atmosphere of ancient monsters. Do not include any text, dialogue, speech bubbles, or artist seals (rakkan) within the image.