Prompt: masterpiece, best quality, highres, solo, {night:1.10}, {starry sky:1.10}, beach, beautiful detailed sky, {extremely detailed background:1.20}, mature, {koyuki_bluearchive:1.10}, long_hair, pink_hair, halo, twintails, open_mouth, bangs, hair_between_eyes, necktie, pink_eyes, very_long_hair, fang, blue_necktie, smile, blush, skin_fang, breasts, {standing:1.10}, looking at viewer, {bikini:1.30}, light smile
Negative prompt: lowres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, username, blurry, white border