After she came in, she knew that the guards in this place could not arbitrarily walk around. Each of them had their specific duties and sites to cover. Thus, Gu Xijiu and Di Fuyi's fake identities could not be used anymore. Hence, they returned to their original appearance and went into stealth mode.
At this moment, the two doors of the weird building were closed. They could not see anything in it. There were a total of ten guards, all of which had level nine or more of spiritual powers. These guards were extremely cautious just looking at their postures.
They were standing in a strategic formation. With this array, if the front was being attacked, the back could counter-attack; while if the end was being attacked, the front could counter-attack. Thus it was almost impossible to attack them quietly.