score_9, score_8_up, score_7_up, score_6_up, source_anime, anime screencap, TRexStudio, wl_lwmons, KanzakiaoiTB, high detail, best quality, classroom environment made of peeled lemon walls, blackboard shaped like a lemon wedge, microscope made of rind and pulp, slim, student with long brown hair, white blouse and blue skirt, holding a lemon cell diagram, surrounded by classmates with citrus lab coats, sunlight filtering through citrus-stained windows, wl_lemons, focus on curiosity and vibrant learning