8k, 4k,nsfw,chibi,1girl, arona (blue archive), solo, skirt, blue eyes, blue hair, sky, school uniform, white skirt, cloud, smile, hair over one eye, halo, multicolored hair, braid, white sailor collar, box, sailor collar, pink hair, blue sky, holding, serafuku, shirt, pleated skirt, choker, long sleeves, looking at viewer, white choker, holding gift, gift, hairband, two-tone hair, bangs, blue shirt, day, single braid, short hair, outdoors, white hairband, closed mouth, valentine, ribbon, bow, blush, sleeves past wrists, gift box