This identity of Qin Tao certainly can't be used anymore; having killed so many people and still being unscathed, it's something impossible for a cultivator at the Golden Core Realm to achieve. The best outcome would be to let Qin Tao die amidst this power struggle.
As for whose identity Lu Chuan should assume...
Isn't the Shadow the best choice?
Possessing the strength of the Nascent Soul and directly taking orders from Kong Zhaozhao.
"I don't know either... the Shadow has never revealed his true face, probably only Father knows what he looks like."
"Then it's settled. I'll find a way to locate the Shadow's body and replace him. With my protection, you won't have to worry about those thieves. As for the condition you promised me before, I've already thought it through.
Lead me to find and open the secret realm, that's my condition. Whether you agree or not, take your time to think about it."
After disguising Qin Tao's body, Lu Chuan got up and left.
