1girl akitsu_maru_(kancolle) akitsu_maru_kai_(kancolle) arms_behind_back asanuma bad_id bad_pixiv_id ball_gag bdsm black_eyes black_hair bondage bound breasts commentary_request gag gagged hat highres huge_breasts kantai_collection long_hair looking_at_viewer navel open_clothes open_shirt peaked_cap rope shibari shirt solo wiffle_gag