She once said: She does not want to suffer the reincarnation of birth, old age, illness and death, joys and sorrows. If he has no return date, he will live alone, not as a mandarin duck, but as an envy of immortals.
At that time, he only took it as a joke, but unfortunately their relationship changed after a year.
Three hundred years later, when he became an immortal, he devoted his life to cultivation to ensure that she would be happy and worry-free; he devoted himself to teaching and paved the way for her to become an immortal.
But he said this to her: I'm afraid I won't be able to love you anymore.