Tang Zhen had once thought about subduing the upper realm cultivators and developing them into the residents of Lou city.
However, after understanding it, he gave up on the idea because it was extremely difficult to do so.
The various races of the true spirit world had a high sense of identity with their race, and their loyalty was not inferior to the residents of the loucheng.
Instead of spending effort to rope him in, it was better to try to cooperate, which might be more in line with the interests of both sides.
It wasn't easy to cooperate, so it was best to find a breakthrough point and establish the first contact.
Tang Zhen investigated the information of the three captives and discovered that one of them was raising a divine beast Taotie. Thus, he had the idea of inviting them to an exchange.
The Taotie was the most gluttonous and could even disregard everything else. This was the best target to make use of.