Three hundred years of reincarnation, frost and snow are the witnesses of their meeting and separation. Immortal General Chang Geng guarded the northern border for three thousand years. Ayao, the spirit fox of Qingqiu, was severely injured by a thunderstorm when he was going through a tribulation. He huddled in the plum forest and was rescued by him and brought back to the immortal mansion.
After getting along for a long time, the two made an agreement in the plum forest on the day when the frost and snow were at their peak: "On the day when the frost and snow melt away, we will keep time together." However, the immortals and monsters took different paths, and the heaven issued an order to kill Ayao. In the wind and snow, Ayao didn't want him to be in a dilemma and wanted to defend herself against the heavenly soldiers. However, Chang Geng protected her by inducing the immortal soul to be sealed in the ice abyss, giving her life-long immortal power in exchange for her life.
After Ayao woke up, she could not find Chang Geng. After learning the truth, she practiced forbidden arts and spent thousands of years traveling across nine heavens and ten places, just to find his soul. Three hundred years passed, her red clothes faded to white, and her smart eyebrows were stained with vicissitudes of life, but to no avail - the ice abyss seal was his deliberate protection.
Another year of frost and snow sealing the mountains, Ayao returns to the plum forest in the north. The mountains are still filled with red plum blossoms, but there is no one to tie the flowers for her anymore. She touched the ice of the ice abyss, and what she touched with her fingertips was three hundred years of time, the silent immortal soul, and the untouchable past.
Snowflakes fell in her hair, and she finally realized: the most painful thing is not the separation between life and death, but the frost and snow blocking the road, traveling to the end of the world, and never meeting the person who promised to stay together. On the northern ice sheet, a woman in plain clothes stood by the ice abyss day after day, waiting for a snow that would not melt, waiting for a person who would not come back, waiting for a promise that was never fulfilled. Three hundred years of waiting became a dream from which one cannot wake up.