2girls calculus cape chalk chalkboard closed_eyes homological_algebra kitashirakawa_chiyuri maku_(artist) math multiple_girls okazaki_yumemi science sweatdrop touhou touhou_(pc-98) ⑨

calculus cape chalk dutch_angle grin hand_on_hip hips long_hair math misopanne okazaki_yumemi red_eyes red_hair redhead smile solo touhou touhou_(pc-98)

adjusting_glasses bespectacled blackboard blue_eyes blue_hair calculus chalkboard cirno classroom_eraser glasses kabayaki_unagi math ribbon ribbons science solo touhou wings ⑨

akihiyo blonde_hair blush_stickers bow brown_eyes brown_hair calculus closed_eyes dress eyes_closed hat hat_bow maribel_hearn math multiple_girls smile star touhou usami_renko wheelchair

:3 :d ^_^ apple apron ascot bat_wings black_legwear blonde_hair blue_hair blush book bookshelf box braid cabinet cake calculus candle candy cardboard_box chair chalkboard child_drawing chocolate chocolate_bar closed_eyes crescent cup diagram

arms_up belt blonde_hair calculus chemical_structure dress facial_mark fox_tail grin hat hat_with_ears hiba_(p-p-purin) math multiple_tails ofuda short_hair smile solo tabard tail touhou white_dress wide_sleeves wrist_ribbon yakumo_ran yellow_eyes

bishoujo_senshi_sailor_moon blue blue_eyes blue_hair bow brooch calculus earrings gloves jewelry magical_girl math mizuno_ami pleated_skirt por ribbon sailor_collar sailor_mercury short_hair skirt solo tiara water white_gloves

calculus collage graph graphic graphing_calculator koiwai_yotsuba math photo texas_intruments ti-84_plus yotsuba yotsubato!

1girl absurdres adjusting_eyewear angel_wings aviator_sunglasses black_neckerchief blonde_hair blue_archive breasts buttons calculus capelet chibi chibi_inset commentary_request double-breasted dress equation feathered_wings flower hair_flower hair_ornament halo hand_on_own_hip hand_up highres long_hair long_sleeves math medium_breasts

3girls :d abstract akita_neru aqua_hair blush_stickers calculus commentary crisi english_commentary full_body hand_on_own_hip hand_up hatsune_miku kasane_teto lined_paper long_hair math multiple_girls one_eye_closed smile standing triple_baka_(group) twintails utau very_long_hair vocaloid white_background

bad_id calculus chair child classroom closed_eyes comic desk hairband heart kiira komeiji_satori math multiple_girls open_mouth pink_hair purple_hair rubbing_eyes shirt short_hair sitting skirt sleeping smile surprised teacher touhou translated translation_request uwabaki

1girl absurdres ahoge alternate_costume alternate_hairstyle bespectacled blurry blush breasts calculus collared_shirt depth_of_field feet glasses green_eyes hair_down heterochromia highres hololive hololive_indonesia kureiji_ollie labcoat long_hair math miniskirt mismatched_pupils mk_(lazymk) multicolored multicolored_eyes no_shoes