!?, 1girl, 3boys, agnes_tachyon_(umamusume), animal_ears, blank_eyes, book, book_stack, bottle, by_tsume, chibi, comic, crossed_arms, ear_covers, earrings, fujoshi, genderswap, genderswap_(ftm), greyscale, hair_between_eyes, hand_on_own_chin, height_difference, holding, holding_book, holding_bottle, horse_boy, horse_ears, horse_girl, horse_tail, hugging_own_legs, imagining, jealous, jewelry, knees_together_feet_apart, lab_coat, loafers, long_hair, long_sleeves, mayano_top_gun_(umamusume), mini_person, minigirl, monochrome, multiple_boys, nishino_flower_(umamusume), no_mouth, notice_lines, otoko_no_ko, pants, recursive_genderswap, school_uniform, seiun_sky_(umamusume), shoes, short_hair, single_ear_cover, single_earring, sleeves_past_fingers, sleeves_past_wrists, smirk, smug, solid_circle_eyes, speech_bubble, spoken_interrobang, standing, suspenders, sweat, sweatdrop, sweater, tail, test_tube, tracen_school_uniform, umamusume, water_bottle, yaoi, zenno_rob_roy_(umamusume)