1boy, 1girl, age_difference, alcohol, animal_ears, balloon, blue_eyes, blue_hair, bow, bowtie, breasts, cat_ears, cat_tail, champagne, cleavage, collared_shirt, confetti, dress_shirt, fake_animal_ears, formal, happy_birthday, heart_balloon, heterochromia, long_hair, looking_at_viewer, necktie, open_mouth, original, party_popper, pink_hair, purple_eyes, rabbit_ears, red_eyes, shiomachi, shirt, short_hair, smile, suit, tail, thighhighs, wrist_cuffs