Craft a manga-style portrait of a young man featuring rough brown hair, brown eyes, and imposing thick black eyebrows. His mature face holds an intimidating aura. The manga should draw inspiration from the work of manga artist Junji Ito, infusing elements of horror and mystery. The scene is set indoors, with dim lighting casting eerie shadows that contribute to the atmosphere. Create a detailed, full-page illustration that showcases the man's facial features and expression. His gaze should evoke unease and intensity, drawing the viewer into the unsettling narrative. Utilize intricate linework and shading techniques to bring out the manga's signature style, and add subtle details that enhance the eerie undertone.

verybadimagenegative_v1.3, ng_deepnegative_v1_75t, (ugly face:0.8),cross-eyed,sketches, (worst quality:2), (low quality:2), (normal quality:2), lowres, normal quality, ((monochrome)), ((grayscale)), skin spots, acnes, skin blemishes, bad anatomy, DeepNegative, facing away, tilted head, {Multiple people}, lowres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, worstquality, low quality, normal quality, jpegartifacts, signature, watermark, username, blurry, bad feet, cropped, poorly drawn hands, poorly drawn face, mutation, deformed, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, extra fingers, fewer digits, extra limbs, extra arms,extra legs, malformed limbs, fused fingers, too many fingers, long neck, cross-eyed,mutated hands, polar lowres, bad body, bad proportions, gross proportions, text, error, missing fingers, missing arms, missing legs, extra digit, extra arms, extra leg, extra foot, ((repeating hair))