After gaining her freedom, Shao Yuzui wants to focus on cultivation and break through the final two stages of demonic cultivation. Not long after leaving the demon race, she meets a "foolish rabbit" who nearly poisons her to death. Then the rabbit latches onto her, and she can't shake her off...
After getting to know her, Shao Yuzui learns that the other woman is Mo Wan, the carefree prince of the legendary Xuyu Kingdom. Since Shao Yuzui cultivates demonic arts, no kingdom is willing to help her with her cultivation, not even under the guidance of Zhu Jiuyin, the half-demon, half-god Guardian.
After spending a long time together, Mo Wan decides to take her back to the Xuyu Kingdom, claiming that she can cultivate while serving as a priestess.
When Shao Yuzui sees the young woman standing in front of the gates of the Xuyu Kingdom, she mistakes her for the Demon Venerable. Only when the woman turns around and touches her demon horns does Shao Yuzui realize...
Mo Wan bringing Shao Yuzui home stirs up a commotion. Shao Yuzui's appearance and bearing are remarkably similar to that demonic cultivator from years ago, the woman who even poisoned the little princess's food in an attempt to replace her.
Fortunately, Mo Qi eliminates her in time. But Mo Wan never smiles at her brothers again. She even puts up an unmarked tombstone for the woman in the royal cemetery. No one dares mention her in front of Mo Wan. At most, they call her "that woman," as if she doesn't even deserve to have her name remembered...
Shao Yuzui wants even more to correct the mistakes recorded about "that woman," while Mo Wan, after her death, frantically cultivates immortal arts to develop perfect immunity.
Out of a need to compensate, Mo Wan clings to Shao Yuzui, even changing back to her original form and crawling under the covers with her.
Shao Yuzui, meanwhile, uses Mo Wan's constitution to aid her cultivation, studying the effects of all kinds of poisons with her help.
As they praise each other while treating one another as substitutes and as the person they long for, they gradually fall in love. At last, they let go of the past and understand that "the person you long for can only be the person you long for."
Theme: They come to their senses amid political schemes and interests, and only understand true affection when they nearly lose it.
