kido airaku, professor niyaniya (blue archive), blue archive, highres, 1girl, armchair, beret, black coat, black gloves, black hat, black pantyhose, black sailor collar, black serafuku, blonde hair, boots, bow, bowtie, chair, coat, crossed legs, cup, drinking glass, fluffy hair, full body, gloves, green eyes, grey sailor collar, hair intakes, halo, hat, holding, holding cup, looking at viewer, pantyhose, red bow, red bowtie, sailor collar, school uniform, serafuku, side ahoge, sitting, smile, solo, white background, yellow halo