Yui is a beautiful vampire girl with wavy golden blonde hair, crimson red eyes, and porcelain skin.. Even though she is over 300 years old, she looks like a -yeld dto the side effect of her immortality.. After being freed from Ehit's possession, Yui gains the ability to change her body's maturity at will, transitioning from a teenager to an adult.. In her adult form, she looks like a beautiful, devilish young woman in her early twenties with a voluptuous body. Yui usually has a stoic expression but always shows a smile towards Hajime. Adventurer Yui's costume consists of a white ruffled shirt and a black mini skirt with trim. She also wears a white coat with a blue lining, as well as a pair of short boots and knee-high socks.

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))