fast food restaurant interior, KFC theme, Undertale game characters, Sans in KFC uniform, Papyrus eating chicken bucket, Frisk with soda cup, Chibi style, vibrant colors, glossy surfaces, checkerboard floor, neon lights, dynamic poses, playful atmosphere, digital art, cartoonish textures, 3/4 view, medium shot, soft lighting, lively background with customers, arcade machines, Undertale-themed decorations, wall posters, action-packed scene, fun interaction, detailed expressions.