Rule 34 Dev - 00s 1girl belt belt_skirt bikini black_bikini breasts covered_erect_nipples female_focus hand_on_own_chest knife large_breasts long_hair marubonman navel open_mouth puffy_nipples red_eyes selvaria_bles senjou_no_valkyria_(series) silver_hair solo swimsuit sword weapon white_background|4683071835