1boy, 1girl, albedo_(genshin_impact), animal_ear_fluff, animal_ears, antenna_hair, aqua_eyes, black_hood, blonde_hair, blue_leotard, blue_shirt, blush, book, book_stack, bookshelf, breasts, chiri_(o9o9), closed_eyes, coat, erlenmeyer_flask, flask, frilled_leotard, frills, fur_collar, genshin_impact, glasses, gloves, green_hair, hair_flaps, hand_on_another's_chest, hand_on_wall, hetero, holding_another's_wrist, hood, hooded_coat, indoors, kiss, laboratory, leotard, long_sleeves, looking_at_another, pinned, ponytail, semi-rimless_eyewear, shirt, short_hair, simple_background, small_breasts, sucrose_(genshin_impact), sweatdrop, test_tube, upper_body, vision_(genshin_impact), white_coat, white_gloves