sakai eri (illustratoreri), petra gurin, reimu endou, nijisanji, nijisanji en, absurdres, highres, second-party source, 2girls, barefoot, black hair, braiding hair, closed eyes, fish hair ornament, hair ornament, hairdressing, high contrast, invisible chair, long hair, monochrome, multiple girls, open mouth, school uniform, seiza, serafuku, short hair, sitting, virtual graduation commemoration, white background, white hair