((best quality)), ((masterpiece)), (detailed), a couple, a boy and a girl

((best quality)), ((masterpiece)), (detailed), a couple, a boy and a girl, 1 boy, full body, 19 years old, brown hair with white tips, long, bangs, green eyes, mischievous smile, tall and thin, slim, long beige trench coat, open trench coat, black fingerless gloves, white wristbands, white t-shirt with blue I-shaped emblem, letter I, black pants, white knee pads, 1 girl, full body, 20s, young adult, purple eyes, scientist's lab coat, sitting in a cafe, city background, anime

(worst quality, low quality:1.4), watermark, signature