eri (blue archive), blue archive, absurdres, commentary, highres, 1girl, :d, black hat, black robe, black skirt, black socks, blush, book, bow, bowtie, braid, breasts, brown eyes, buttons, crossed bangs, diagonal-striped bow, diagonal-striped bowtie, diagonal-striped clothes, feet out of frame, from below, grey hair, hair between eyes, hair bobbles, hair ornament, halo, hand up, happy, hat, hat ribbon, holding, holding book, kneehighs, large breasts, lasttime0519, long hair, long sleeves, looking at viewer, low ponytail, miniskirt, open book, open clothes, open mouth, open robe, pleated skirt, ponytail, red bow, red bowtie, red ribbon, ribbon, robe, school uniform, shirt, sidelighting, simple background, single braid, sitting, skirt, smile, socks, solo, striped bow, striped bowtie, striped clothes, thighs, tilted halo, very long hair, white background, white shirt, wide sleeves, witch, witch hat, yellow halo