1boy, 3girls, d, =3, animal_ears, aramori_susumu, big_hair, blunt_bangs, blush, border, braid, braided_ponytail, breasts, bright_pupils, clenched_hand, collarbone, comic, competition_school_swimsuit, covered_navel, cowboy_shot, crown_braid, curvy, ear_scrunchie, faceless, faceless_male, fang, fox_mask, frown, glasses, hair_between_eyes, hair_ornament, hair_over_shoulder, hair_ribbon, hair_tie, hand_on_own_hip, horse_ears, horse_girl, horse_tail, inari_one_(umamusume), large_breasts, lineup, long_hair, looking_at_viewer, marvelous_sunday_(umamusume), mask, mask_on_head, medium_hair, monochrome, multiple_girls, one-piece_swimsuit, open_mouth, outstretched_arms, parted_bangs, raglan_sleeves, raised_fist, ribbon, saddle, school_swimsuit, scrunchie, shaded_face, shirt, short_sleeves, short_twintails, sidelocks, single_braid, skin_fang, smile, sparkle, speech_bubble, spread_arms, standing, swimsuit, tail, tail_through_clothes, thick_thighs, thighs, tracen_swimsuit, trait_connection, twintails, umamusume, zenno_rob_roy_(umamusume)