Building the Strongest Fortress in the Western Jin

In the fifth year of Yongjia of the Western Jin dynasty, Luoyang fell, barbarian cavalry ran rampant, and the Central Plains were in turmoil. Wen Yan, a modern graduate student in history, accidentally time-travels while sorting through historical materials on the 'Five Barbarians' rebellion, becoming a poor commoner of the same name in a Han fortress in Bingzhou that is about to be massacred. Relying on his foreknowledge of this dark period and modern thinking, he organizes resistance in desperate circumstances, saving some of his clan, but also witnesses the brutality of the barbarian warlord Shi Hu's army—his 'family' dies tragically. Fueled by a simple desire for revenge and a sense of helplessness toward history, Wen Yan begins his struggle in this chaotic era. He knows that hatred alone cannot ensure survival, nor can it change the century-long darkness following the 'Disaster of Yongjia.' His impossible mission is to find a path that can both protect those around him and sustain civilization in an age where ethnic hatred is magnified and human life is cheap. Using modern knowledge, he improves farming tools, trains militia, and establishes a small base called 'Mingyue Fort' in the cracks between several powers, with the motto 'Protect those willing to follow order, regardless of Han or barbarian.' However, the stakes are extremely high: failure would not only reduce his followers to 'walking sheep' again but also extinguish the spark of civilization he tries to sow—one that transcends hatred.