2girls, adapted costume, arms behind back, bat wings, black vest, blue bow, book, bookshelf, bow, chair, crescent, crescent hair ornament, crescent hat ornament, expressionless, frilled sleeves, frills, hair ornament, hat, hat ornament, head wings, hijab, holding, holding book, indoors, long sleeves, looking at viewer, mob cap, multiple girls, muslim, necktie, photo inset, purple eyes, purple headwear, red bow, red eyes, red headwear, red necktie, reference inset, semi-rimless eyewear, shirt, sitting, sketch, smile, standing, under-rim eyewear, vest, white shirt, wide sleeves, wings