Anime girl with blue hair and black bra top holding a knife

Korean girl, black hair, older sister, putting her hair in a ponytail and smiling to the narrator, high definition picture, masterpiece, (beautiful girl, cafe, seductive, virgin, sexy), (secretary), Miku, Hatsune Miku, blue hair,

(worst quality, normal quality, low quality:1.7), watermark, signature, text, freckles, lowres, monochrome, grayscale, bad proportions, ugly, dirt on face,