frisk (undertale), sans (undertale), undertale, utdr (toby fox), absurdres, adversarial noise, highres, 1boy, 1other, :d, ankle boots, arms around neck, black pants, blue jacket, blue shirt, blue shorts, bob cut, boots, brown boots, brown hair, brown socks, carrying, covered eyes, cropped legs, croquis2025, crossed ankles, drawstring, full body, grey background, grin, hair over eyes, hands in pockets, hollow eyes, hug, hug from behind, jacket, kneehighs, knees apart feet together, long sleeves, open clothes, open jacket, open mouth, pants, piggyback, pink shirt, puffy long sleeves, puffy sleeves, shirt, short hair, shorts, simple background, single vertical stripe, skeleton, smile, socks, striped clothes, striped shirt, two-tone shirt, white shirt