1girl, ahoge, beaker, blue_sailor_collar, blue_shorts, blunt_bangs, book, bookmark, cotono_(nazekun), cropped_shirt, crying, crying_with_eyes_open, eraser, erlenmeyer_flask, eyewear_on_head, flask, flat_chest, hands_on_own_cheeks, hands_on_own_face, happy_tears, heart, heart_ahoge, lab_coat, navel, open_book, open_mouth, original, pastel_colors, pink_hair, round-bottom_flask, sailor_collar, science, sharp_teeth, shirt, shorts, smile, solo, tears, teeth, test_tube, upper_teeth_only, vial, white_shirt, wide_sleeves