professor niyaniya (blue archive), blue archive, commentary request, 1girl, beret, black coat, black hat, black pantyhose, black sailor collar, black serafuku, blonde hair, book, bow, bowtie, coat, cuffs, fluffy hair, green eyes, hair intakes, halo, handcuffs, hat, karintou 318, long hair, looking at viewer, pantyhose, red bow, red bowtie, sailor collar, school uniform, serafuku, side ahoge, sitting, smile, solo, suitcase, wariza, yellow halo