1boy, 1girl, black_hair, butterfly_hair_ornament, douma_(kimetsu_no_yaiba), facing_away, fingernails, flipped_hair, forked_eyebrows, grey_background, grey_hair, hair_between_eyes, hair_ornament, hamiko_(hakogardenmiko), hand_on_another's_head, hands_up, head_tilt, holding, holding_hair_ornament, kimetsu_gakuen, kimetsu_no_yaiba, kochou_shinobu, light_brown_hair, long_sleeves, looking_at_another, looking_away, multicolored_eyes, portrait, rainbow_eyes, smile, symbol-shaped_pupils, twitter_username, unworn_hair_ornament, updo