richu, kamiizumi yasuna, kurusu tomari, mari ayuki, osaragi hazumu, kashimashi, 00s, 4girls, black hair, bow, bowtie, brown eyes, brown hair, chair, chalkboard, classroom, desk, dutch angle, green eyes, hairband, indoors, looking at viewer, mary janes, multiple girls, on chair, red skirt, school, school desk, school uniform, see-through silhouette, serafuku, shirt, shoes, short hair, short sleeves, sitting, skirt, smile, striped clothes, striped shirt, table, transparent, vest, white shirt, window