2023, 2boys, d, alternate_costume, animal_ears, armpits, ass, astolfo_(fate), black_leotard, black_thighhighs, chinese_zodiac, covered_navel, fake_animal_ears, fate/grand_order, fate_(series), gradient_background, hair_between_eyes, kitajima_yuuki, leotard, long_hair, looking_at_viewer, male_focus, male_playboy_bunny, multiple_boys, one_eye_closed, open_mouth, otoko_no_ko, pink_background, pink_hair, playboy_bunny, prince_of_lan_ling_(fate), purple_eyes, rabbit_ears, short_hair, sitting, smile, thighhighs, white_eyes, year_of_the_rabbit