Introduction：
Su Xiao, a doctor of agriculture, failed in her seventh blind date.
The other party said that she was "too rational" - someone else gave them roses on a date. She took people to visit the experimental field, pointed to the heading wheat seedlings and said, "Look, it's the beginning of autumn, and they are filling."
She really only believed in data, papers and cell walls under the microscope, until the man who called himself "Shi Ji" broke into her laboratory.
"I am Jingzhe." He said, "Every solar term, I must see you."
Su Xiao thought he was mentally ill and almost called the police. But the next day, a willow flute arrived at the beginning of spring; there came a rain of apricot blossoms that could only be found in her office during the Qingming Festival; on the day of the Great Heat, the room was filled with the fragrance of lotus flowers without any wind.
She began to look through ancient books, and found a bone flute engraved with the word "Ji" in the folder of "The Collection of Seventy-Two Hours of the Moon Order". There is a line of small characters written on the broken bamboo slips:
"She feeds the grain with blood, and I swear by my bones. From now on, for thousands of years, I will be with the twenty-four solar terms, guarding every inch of the land for her until she comes back."
It turns out that she was the girl who sacrificed her life to save the common people thousands of years ago. And Shi Ji was the Valley Keeper who failed to protect her back then, so he turned himself into the incarnation of solar terms and waited for her reincarnation at every time point.
But among the twenty-four solar terms, there is more than just the spring rain that shocks the spring and clears the valley. There is also a solar term that has not come for a thousand years. If it comes, the Jiji will completely disappear.
And that solar term is called "Frost Descent".
Su Xiao looked at him holding an umbrella for her in Guyu, and for the first time, she felt that something was more real than data.
"This time," she clutched the bone flute tightly, "I will guard you."
Concept: The twenty-four solar terms measure the time of the day, and love is the only constant in reincarnation that does not flow with the seasons.