1girl, black-framed eyewear, black jacket, black shirt, blazer, blue bow, blue eyes, blue hair, blush, bow, collarbone, flat chest, glasses, hair bow, hand on own face, happy birthday, holding own arm, id card, jacket, lanyard, lips, looking at viewer, official alternate costume, outline, parted lips, shirt, short hair, solo, standing, striped, striped shirt, upper body, vertical-striped shirt, vertical stripes, virtual youtuber, white outline