ayahosiyuki, arona (blue archive), plana (blue archive), blue archive, highres, 2girls, black choker, black coat, black eyes, black hairband, black sailor collar, black serafuku, blue eyes, blue hair, blue halo, blush, book, braid, choker, coat, hair over one eye, hairband, halo, holding, holding book, long hair, long sleeves, multicolored hair, multiple girls, open mouth, pink hair, red halo, sailor collar, school uniform, serafuku, smile, white choker, white hair, white sailor collar