Dear Senior,
As we were both trained under the same master, your joys and sorrows are also mine. While you secluded yourself to research the armor, I couldn't join you, which I already regret how could I possibly be jealous of your achievements?
Mystech disciples who create mechanisms should be practical, truthful, and maintain their original intentions, not indulge in temporary advantages of devices. Our sect's martial arts are rooted in mechanical techniques, but we refrain from developing such large-scale killing machines not because we lack ability, but because the endless future troubles would be unbearable. If "Evil Vanquisher" could serve under my control to protect our homeland, that would be good but how can we ensure it won't fall into the hands of those with vicious ambitions who might use it elsewhere for murder and profit? Moreover, its core mechanism operates with intricate complexity, making it extremely difficult to control. The slightest error could lead to massive disaster. I urge you to reconsider!
Your Junior, Xie Zhuo