After staying with Su Yun for ten years, her merits were perfected and she became an immortal. Before leaving, she made me a wish. I don't ask for wealth and longevity, I only ask for a strand of black hair from her. Using black silk to make a pen to express my love, I unexpectedly developed a pen spirit and a heart of ink. But just when I was relying on Mo Xin to comfort my thoughts, Su Yun came on the clouds after ascending and wanted to get rid of Mo Xin. The love between immortals and mortals was broken, and the obsession was difficult to eliminate. How should this dispute end?