1girl, artist_name, barefoot, black_hair, blush, breasts, brown_eyes, fang, feet, grin, hair_ornament, hairclip, half-closed_eyes, hands_on_own_thighs, ijiranaide_nagatoro-san, knee_up, long_hair, looking_at_viewer, lying, nagatoro_hayase, nail_polish, navel, on_back, panties, presenting, red_panties, seraziel, small_breasts, smile, solo, spread_legs, stomach, teeth, thighs, toes, underwear