Rule 34 Dev - 1girl back back_tattoo black_thighhighs breasts choker female_focus from_behind hair_ornament japanese_clothes katana leaf_print long_hair medium_breasts megurine_luka nail_polish off_shoulder pentagram pink_eyes sideboob solo sword tattoo thighhighs twintails very_long_hair vocaloid weapon yukinon yukinon_(tsuki_koubou)|2843752743