1girl, bathing, braid, breasts, bright_pupils, brown_hair, cleavage, from_below, large_breasts, looking_at_viewer, m.i.y, mature_female, naked_towel, onsen, oosuki_mamako, purple_eyes, rock, shiny_skin, sidelocks, smile, steam, thighs, towel, tsuujou_kougeki_ga_zentai_kougeki_de_ni-kai_kougeki_no_okaasan_wa_suki_desu_ka?, wet, white_pupils