The Record of the Black Armored Army’s Deeds in the Zhenguan Era

Gu Zhaowu, a modern history enthusiast, wakes up to find himself an ordinary soldier in the Black Armor Army during the Zhenguan era of the Tang Dynasty. He has also brought a mysterious Book of Merit with him as he transmigrates. Bound to the entire Black Armor Army, the book grants Gu Zhaowu points whenever the army earns merit, allowing him to unlock technologies far ahead of their time, from horseshoes and steelmaking to gunpowder recipes. Faced with the northern Turkic cavalry and treacherous internal power struggles, Gu Zhaowu decides to use this golden finger to forge the Black Armor Army into an invincible force of steel and leave an indelible mark on the pages of history.