koharu (blue archive), blue archive, original, commission, highres, 2girls, beret, black hair, black serafuku, blush, dutch angle, embarrassed, gloves, halo, hat, head wings, long hair, looking at another, looking to the side, low twintails, low wings, marant38, multiple girls, neckerchief, off shoulder, pink eyes, pink hair, pink neckerchief, sailor collar, school uniform, serafuku, single glove, sitting, skindentation, twintails, white sailor collar, wings, yuri