Lin Mo transmigrates into the Great Yin Dynasty as a "good-for-nothing spendthrift" and binds to the "Legacy of the Literary Lineage" System.
> To save his family's printing workshop from bankruptcy, he presents them with movable clay type, only for his father to smash it on the spot: "The laws of our ancestors must not be changed!"
> Cast out of his home, he lies low in the slums, improves the type, and scrapes by printing small advertisements.
> Liu Chengsi, the young master of Juwenzhai, hears of this and makes his move. He cuts off Lin Mo's supply of materials while sabotaging a palace printing contract.
> Just as his family faces confiscation and punishment, word arrives that the northern frontier is ablaze and Yunzhou is under attack.
> Gritting his teeth, Lin Mo slips a formula for gunpowder into The Essentials of City Defense, printed overnight, and sends it into a deadly situation.
> Days later, Bianjing is shaken: thunder erupts atop Yunzhou's city walls!
Very beautiful😀