Xia ruofei immediately put Liu chengfeng into the spirit map space and set up a space cage to imprison him.
Actually, with Liu chengfeng's spiritual power cultivation, if he had resisted, Xia ruofei would not have been able to put him into the medium so easily.
However, Liu chengfeng had been scared out of his wits in front of a "nascent soul old monster", and he could not even muster up any will to resist.
That was why Xia ruofei had gently brought Liu chengfeng into the medium.
When Liu chengfeng came back to his senses, he found that he had been imprisoned.
As Liu chengfeng was a cultivator, Xia ruofei was not sure how well he had mastered the rules of space. Hence, this space cage was much more secure than the ones used to imprison ordinary mercenaries.
Furthermore, Xia ruofei had specially extracted all the spiritual Qi in the space cage. He did not want Liu chengfeng to use his spiritual Qi to cultivate in the space.