Lin Wei, a doctoral student in the Department of Modern Astronomy, traveled to the 9th century AD Mayan city-state Canmuer and was tied to the pyramid altar as soon as he opened his eyes. When the stone knife was about to fall, she used modern astronomical calculations to shout "Tonight's solar eclipse", and her accurate prediction shocked the whole audience. The Quetzalcoatl god Kukulkan appeared during the solar eclipse, recognized her as the "chosen priest" in public, and rescued her from the altar.
In order to survive, Lin Wei made a pact with Kukulkan: God would give her protection, and she would help God regain her faith. She supplemented the local Maya wisdom with modern science, promoted corn rotation, built karez, made the calendar public, and changed bloody sacrifices to harvest festivals and labor assessments, winning public support and touching the interests of the old priests and nobles. Kukulkan originally only wanted to use her to solve the crisis of the long calendar cycle, but found that he was being "scientized" by her little by little: the blood sacrifice was abolished, the temple began to record data, and even the divine envoys learned to use pottery chips to do censuses.
The thirteenth Baktun cycle of the Long Calendar is coming to an end, and the old priests claim that only large-scale blood sacrifices can continue the sun. When drought strikes and the northern city-state coalition forces press the border, the god of the underworld, A. Puche, secretly awakens and draws strength from fear and death. Lin Wei must find a third way between divine power and royal power. In order to save her, Kukulkan lost his godhood and revealed the truth before his death: what he wanted was not a sacrifice, but a "variable" that could break the priest's monopoly and regenerate civilization.
Lin Wei refused to become a god and established a priestly school with calendar and science as the core, so that the world would no longer blindly believe in blood sacrifices. A new cycle has arrived, and Kukulkan returns as a mortal to protect civilization with her.
Intention: Divinity lies not in blood sacrifice and fear, but in the wisdom and compassion that keep civilization alive.