1girl black_leotard blonde_hair blue_eyes breasts closed_mouth contrapposto covered_navel enkyo_yuuichirou from_side full_body girl_with_hoodie_(enkyo_yuuichirou) gloves hand_on_hip headphones highleg highleg_leotard holding holding_sword holding_weapon knee_pads leotard mechanical_sword medium_breasts medium_hair multicolored_hair original simple_background solo standing streaked_hair sword thigh_strap weapon white_background