In Tianyuan Continent, the way of chess is the way of immortality - the chessboard is the battlefield, the chess pieces gather spiritual power, and the power of chess determines the superiority and inferiority.
Ayi was originally the legitimate daughter of the queen, but due to the false omen of "Yixing hanging upside down" when she was born, her biological father sealed her spiritual power and abandoned her in the market. When her adoptive parents died on the night of the royal war, she awakened the "Destiny Assistant System" and learned that she needed to assist the "Destined Person from Another World" in order to unlock the seal and take revenge.
Han Zhiting is a college student from modern times. After time traveling, he became a "waste of chess" who was born with no spiritual power. With his left hand still retaining the calluses from writing questions, he was dragged into the revenge chess game by A Yi, using modern mathematical logic as an edge to dismantle the thousand-year-old chess formula.
From the folk game in Qingyang City to the Tianyuan Pavilion trial in Luoqi City, the two of them went from "strict master and apprentice" to "comrades in life and death": she protected him with her unsealed spiritual power, and he used probabilistic thinking to break the game. They met Mr. Mo who showed them the way, uncovered the Queen's old case, and fought against the secret chess organization. In the royal chess ceremony, they used "mountains and rivers as the board, and the spiritual crystal as the son" to tear apart the century-old conspiracy of the high priest to forge bad omens and control the court situation.
When the identity of Emperor Ayi's daughter is revealed to the world, Han Zhiting's "zero chess power" becomes the key to breaking the game. This yidao practice that begins with revenge ends with two-way redemption. She put down the butcher's knife and selected talents to pass on the throne, freeing Yi Dao from power; he took root in another world and revolutionized Yi Dao so that common people could also enlighten.
It turns out that the real "game of chess" is never to win a game of chess, but to stand side by side with worthy people, so that the way of chess can be pure and the mountains and rivers can be peaceful.