Knowing she's running out of time, Ruoxi tries to see Yinzhen one last time before she leaves this world. She writes a letter to Yinzhen, asking him to visit her one last time before her death. Due to a misunderstanding between Yinzhen and Yinti, the letter is thrown aside unopened. A weak Ruoxi then assumes that Yinzhen's absence confirms that his love for her has ended, and dies in grief and sorrow. (Source: next-episode.net)