nna btg, yakumo itsuki, battle girl high school, commentary request, highres, 1girl, black thighhighs, blazer, blue background, blue border, blue bow, blue hair, blue jacket, blush, blush stickers, border, bow, chibi, chibi only, glasses, green skirt, hair ornament, hairclip, happy birthday, index finger raised, jacket, long hair, open mouth, pleated skirt, red-framed eyewear, school uniform, skirt, solo, star (symbol), thighhighs, twitter username, zettai ryouiki