C773 Ru'er?

As for Baili Jinxiu, he was also in deep discussion with the blacksmiths. After about an hour of discussion, he decided to give them the blueprints for the catapult's catapult, but they all listened to Baili Jinxiu's suggestion and changed its name to Cannon.

"The Princess An is truly wise. After modifying the blueprint of the cannon this way