niko (blue archive), blue archive, absurdres, highres, 1girl, animal ear fluff, animal ears, armband, badac, blue eyes, blue halo, blue sailor collar, blue skirt, blush, fox ears, halo, licking, licking finger, long sleeves, looking at viewer, neckerchief, pink hair, pleated skirt, red armband, red neckerchief, sailor collar, school uniform, serafuku, shirt, short hair, simple background, skirt, solo, tongue, tongue out, white background, white shirt