He had been observing her for a long time. She was leaning slightly against a bamboo bookshelf, her delicate eyebrows slightly furrowed, and her expression focused as she looked at the file in her hands. Although she was dressed in emerald green and stood still, seemingly blending into the small bookstore made of green bamboo, he still noticed her at once. He silently sized her up, and the more he looked, the more familiar she seemed. When she subconsciously bent her left index finger to rub her eyebrows, he squinted his eyes, and the hands by his sides instinctively clenched into fists. He took a step back, hiding himself in the shadows, unable to think of anything to do but stare at her. Suddenly, she touched her waist, and he knew that she was checking some information. Sure enough, her gaze became vacant for a few seconds. Afterward, she closed the book in her hand, hesitated for a moment, then let out a light sigh with a regretful expression as she placed it back on the shelf and turned to leave. He instinctively followed her for a few steps, then returned to take a look at the book she had put down, before leaving the bookstore and quickly spotting her figure among the bustling crowd. He followed her for a while, noticing her stopping in front of a gate of a city within a city.
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