The girl that appeared out of the tianshu bamboo writing strip is Yun, a doll made using Mujia.
Yun calls the sword that appeared out of the tianshu the legendary Xuan Yuan Sword. Through Yun, Yin and Ning acquire new power.
Meanwhile, with a single word from Empress Cheng, Zhao is made chief engineer. He now works on developing constructs.
Mo Heng, who betrayed the empire and joined the rebel army, is also working on a new weapon he calls black fire armor.
but when I fight with it, 
it's practically weightless.
لكن يكاد ينعدم وزنه عندما أقاتل به
aber wenn ich damit kämpfe,
ist es quasi federleicht.
pero cuando lucho con ella,
casi no pesa.
pero cuando lucho con ella,
casi no pesa.
pourtant, je ne ressens pas
son poids pendant le combat,
ma, quando ci combatto, 
non ne sento il peso.
mas quando luto com ela,
parece não ter peso algum.
но когда я сражаюсь,
он будто не имеет веса.