0shu_0v0, 1girl, arm_behind_back, bikini, black_hair, butterfly_hair_ornament, butterfly_wings, closed_mouth, collarbone, feet_out_of_frame, floating_hair, frilled_bikini, frills, hair_ornament, halterneck, head_tilt, insect_wings, kimetsu_no_yaiba, long_hair, looking_at_viewer, navel, red_bikini, side_ponytail, sidelocks, signature, smile, solo, standing, swimsuit, tsuyuri_kanao, white_background, wings