2boys aged_down belt boku_no_hero_academia collared_shirt feather-trimmed_jacket highres mask monochrome mouth_mask multiple_boys necktie overhaul_(boku_no_hero_academia) pants plague_doctor_mask shirt short_hair time_paradox tsunao very_short_hair  1boy 1girl age_difference animal animal_ears black_shirt boku_no_hero_academia bow brown_hair cat cat_boy cat_ears cat_girl collared_shirt ear_piercing eri_(boku_no_hero_academia) grey_hair hair_bow long_hair mask mouth_mask necktie overhaul_(boku_no_hero_academia) piercing pink_bow red_eyes shirt short_hair surgical_mask sweatdrop tsunao very_short_hair white_necktie yellow_eyes  1boy boku_no_hero_academia brown_hair ear_piercing feather-trimmed_jacket feathers from_side male_focus mask mouth_mask overhaul_(boku_no_hero_academia) piercing plague_doctor_mask purple_feathers short_hair solo tsunao very_short_hair  1girl 2boys alternate_costume artist_name black_hair black_legwear blue_dress boku_no_hero_academia bottle bracelet clenched_hands crossdressing crown dress eri_(boku_no_hero_academia) feather_trim floating frilled_dress frills gloves grey_hair hand_on_another's_head heart high_heels highres holding holding_bottle holding_wand horns jewelry katsukame_rikiya long_hair looking_at_viewer mask midair mouth_mask multiple_boys mushroom open_mouth overhaul_(boku_no_hero_academia) pectoral_cleavage pectorals plague_doctor_mask puffy_short_sleeves puffy_sleeves red_eyes short_hair short_sleeves single_horn sitting striped striped_legwear thigh-highs tsunao two-tone_background very_short_hair wand white_background yellow_background yellow_eyes