Recommend using it with 0.8 strength
Prompt words:
Yuiyui, YuiyuiKNSB, 1girl, black_hair, looking at viewer, smile, blushed, assymetric bangs, blunt bangs, black thighighs, red skirt, red eyes, detailed_eyes, modesty collar, red_modesty_collar, sleeveless, black_vest, open sleeveless vest, light grey blouse, Black gloves, fingerless gloves, small breasts, straight hair, booths, skindentation, waist long hair
You can also try with "closed_eye_smile" for her signature smile, too, just swap "red_eyes" to "closed_eyes" first