1girl, ass, blonde_hair, breasts, competition_swimsuit, covered_nipples, from_behind, inanaki_shiki, isshiki_iroha, looking_at_viewer, looking_back, medium_breasts, medium_hair, one-piece_swimsuit, solo, swimsuit, two-tone_swimsuit, white_background, white_one-piece_swimsuit, yahari_ore_no_seishun_lovecome_wa_machigatteiru., yellow_eyes