The protagonist, Lin Zhao, is an esports champion coach and data analyst. By accident, he transmigrates to the Three Kingdoms era with the King System and becomes a prisoner-slave. Though he has no combat ability of his own, he possesses three core abilities: skill insight, meme bestowal, and copying and merging. He relies on tactical command to break through every crisis.
When he first meets Zhou Cang, he escapes by spotting the bandits' skill weaknesses. After joining Liu Bei, he pinpoints the conflict between Guan Yu and Zhang Fei's skills and devises combo tactics that transform their teamwork. He discovers Zhao Yun's potential and uses meme bestowal to unlock the Heart of the Engine skin, evolving his skills and turning him into a top-tier fighter.
At Changban Slope and the Battle of Red Cliffs, Lin Zhao combines King-style tactics with the battles of the Three Kingdoms, using skin memes to recreate famous historical scenes as he leads the generals to defeat one powerful foe after another. Later, Sima Yi's Wolf's Gaze counters him, setting off an intelligence battle. Though Lin Zhao predicts the upheaval in Jingzhou and the defeat at Yiling, he cannot change the main course of history.
In the end, it is revealed that the King System and the crystallized souls of the generals come from a collapsing King world. To protect the Three Kingdoms, Lin Zhao gathers soul-bearers from all three factions and uses the resonance of seventy-two crystals to defeat the will of the King world. The price is that every crystal shatters, and everyone loses their power. Lin Zhao stays in Shu to govern the realm. The System shuts down, and he becomes the uncrowned tactical king of a chaotic age.
