Coser@神楽坂真冬 Vol.059 绝对企画-百合教室《数之歌》

Two young women in school uniforms are seated at a desk with open books before them. They appear to be studying intently. The room has a warm glow, suggesting it's indoors during daylight hours. A window is visible behind them, and there are boxes of books stacked nearby, indicating an academic setting.